JP2019082854A - Information processing device, information processing method, and information processing program - Google Patents

Abstract

To obtain a configuration of being able to efficiently manage the traceability of document data.SOLUTION: A change probability analysis unit 103 calculates a simultaneous change probability which is the probability of a description change simultaneous with that at a reference point which is an arbitrary point in an arbitrary one of a plurality of document data sets and at which a description change has occurred, for each of one or more simultaneous change points, in the plurality of document data sets, where description changes have occurred simultaneously with that at the reference point. A traceability change detection unit 104 derives the time transition of the simultaneous change probability. Further, the traceability change detection unit 104 analyzes the time transition of the simultaneous change probability, and extracts a simultaneous change point where the simultaneous change probability has changed by at least a prescribed level. A traceability change point display unit 105 outputs the simultaneous change point extracted by the traceability change detection unit 104.SELECTED DRAWING: Figure 1

Description

  The present invention relates to technology for managing document data.

  In large-scale system development, which is increasing in recent years, huge document data (hereinafter, also simply referred to as a document) indicating the specification and design information of the system is created.

In the field of system development, we keep trackability of related items in documents or between documents, and make efforts to ensure that the required specifications of the system are implemented reliably. There are many things.
In the present specification, traceability means so-called traceability, and correspondence between a plurality of items included in one document, or correspondence between a plurality of items included in a plurality of documents Say Also, traceability information is information on the relevance for maintaining traceability. For example, it is link information between items or documents.

As described above, in the field of system development, traceability information is set between items in a document or between items in a document to ensure traceability.
However, for example, the traceability information is reflected in the document as traceability information, for example, because traceability information is originally incomplete or when a new system is developed using an existing system. Documents may not be traceable because they have been lost.

  As a result, in the next system development, there is a problem that it takes a lot of time to analyze the change in the design document and the implementation caused by the change in the system specification, or an analysis omission occurs.

  Patent Document 1 discloses a technique for extracting the presence or absence of traceability from unmatched traceability regarding specification / design information from character string consistency between documents.

  In patent document 2, when there is a change in the specification / design information, the traceability managed with respect to the specification / design information actually needs to be changed within the influence range which can be derived by the traceability. A means of statistically processing the probabilities and efficiently discovering actual change impacts is disclosed.

JP, 2016-105217, A JP, 2010-287026, A

  When the actual traceability in a document during system development or between documents is different from the traceability currently managed, this difference is efficiently detected by statistically processing the actual state of the document change be able to.

  As a result, when a certain system is derived and new system development is repeated, traceability information can be prevented from becoming obsolete, and traceability update work time can be significantly reduced.

According to Patent Document 1, traceability between documents is automatically detected by string matching.
For this reason, in the technology of Patent Document 1, it is necessary to use the same string for the same meaning in all specifications and design information.
For this reason, when the wording is not unified among a plurality of specifications and design information due to the fluctuation of the description of the document creator, the technique of Patent Document 1 can not effectively detect the traceability.

  Therefore, the traceability that can be detected by the technique of Patent Document 1 has a high probability of false detection or false detection, and manual confirmation of the traceability is increased. Therefore, the effect of reducing the working time to prevent the traceability information becoming obsolete is low.

  Moreover, although the patent document 2 shows the probability which the influence range extends based on the traceability already managed, the presence or absence of traceability can not be detected from the specification and design information which can not be traced. .

  The present invention has been made under the above-described circumstances, and has as its main object to obtain a configuration capable of efficiently managing traceability of document data.

An information processing apparatus according to the present invention is
One of the plurality of document data that is changed at the same time as the reference point whose description has been changed, which is an arbitrary position in any document data of the plurality of document data A calculation unit that calculates the same-time change rate, which is a ratio at which the description is changed at the same time as the reference place, and derives the time transition of the same-time change rate.
An extraction unit that analyzes a time transition of the same-period change rate, and extracts a same-time change location where the same-time change rate changes by a predetermined level or more;
And an output unit that outputs the simultaneous change point extracted by the extraction unit.

  According to the present invention, it is possible to notify the user of the same-time change point estimated to have a change in the traceability to the reference point by outputting the same-time change point where the same-time change rate greatly changed. Therefore, traceability of document data can be efficiently managed.

FIG. 2 is a diagram showing an example of a functional configuration of a specification selection and reference device according to the first embodiment. 6 is a flowchart showing an operation procedure of a history reading unit according to the first embodiment. FIG. 6 shows an example of history information according to the first embodiment. The figure which shows the example which classify | categorized the log information which concerns on Embodiment 1 in arbitrary unit periods. The figure which shows the example which reclassified the historical information which concerns on Embodiment 1 in arbitrary unit periods. 6 is a flowchart showing an operation procedure of a change probability analysis unit according to the first embodiment. FIG. 7 shows a specific example of step S603 according to the first embodiment. FIG. 7 is a diagram showing an example of the same-period change part and change probability according to the first embodiment. 6 is a flowchart showing an operation procedure of the traceability change detection unit according to the first embodiment. FIG. 7 is a diagram showing an example of a changed portion in the document B and a change probability thereof when the portion α in the document A is changed according to the first embodiment. The figure which shows the example of the graph which detected possibility that the traceability between documents based on Embodiment 1 changed. FIG. 2 is a diagram showing an example of the hardware configuration of a specification selection selection device according to the first embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the embodiments and drawings, the same reference numerals denote the same or corresponding parts.
The present invention is not limited by the embodiment.

Embodiment 1
*** Summary ***
In the present embodiment, a specification selection and reference device capable of efficiently managing the traceability of a document in system development will be described.
More specifically, the specification selection selection device according to the present embodiment reads the change history of documents A and B related to the system.
Then, the specification selection selection device classifies each change history into an arbitrary unit period. The specification selection selection device focuses attention on an arbitrary place (hereinafter, referred to as a reference place) in an arbitrary document whose description has been changed after associating the change histories of the same classification with each other. Calculate a probability (hereinafter, referred to as a change probability) that a change point that may change at the same time as the reference point (hereinafter, referred to as a simultaneous change point) is changed at the same time as the reference change point.
Furthermore, the specification selection and reference device analyzes how the calculated change probability changes when compared with other classifications classified in a set of arbitrary periods.
The specification selection and reference device detects the change probability of change if the change probability is equal to or greater than an arbitrary threshold value, and there is a possibility that the traceability information such as the specification and design information may be changed. Show this to the user in the form of
Since the same-time-changed portion is a portion whose description has been changed at the same time as the reference portion, it is considered that traceability information for the reference portion is provided in the same-time changed portion. If there is a change in the traceability information for the reference point at the same time change point, the change probability is also considered to change.
For this reason, in the present embodiment, the specification selection and reference device estimates that the traceability information for the reference point of the change place at the same time has changed when the change probability changes significantly, and the change probability changes significantly. Output the changed part at the same time.

*** Description of the configuration ***
FIG. 1 shows an example of the functional configuration of a specification selection and reference device 100 according to the present embodiment.

The specification document selection and reference apparatus 100 includes a history reading unit 102, a change probability analysis unit 103, a traceability change detection unit 104, and a traceability change point display unit 105.
The specification selection selection device 100 receives the change history 101 of the documents A and B as an input, and provides the user with the possibility that the traceability information in the documents A and B has changed as an output.

  The history reading unit 102 reads the change history 101 of the documents A and B.

The change probability analysis unit 103 calculates a change probability. The change probability is, as described above, a ratio at which the description of the simultaneous change place is changed at the same time as the reference place. The change probability corresponds to the same-time change rate.
Note that, as described above, the same-period change points are points in a plurality of documents whose descriptions have been changed at the same time as the reference point.
The change probability analysis unit 103 calculates a change probability for each change point and period for the same period.
The change probability analysis unit 103 constitutes a calculation unit together with the traceability change detection unit 104 described later.
Further, the operation performed by the change probability analysis unit 103 constitutes a calculation process together with the operation of the traceability change detection unit 104.

The traceability change detection unit 104 arranges, in time series, the change probability for each of the simultaneous change parts and for each period calculated by the change probability analysis unit 103, and derives the time transition of the change probability for each of the simultaneous change parts.
Also, the traceability change detection unit 104 analyzes the time transition of the change probability. Then, the traceability change detection unit 104 extracts a simultaneous change portion where the change probability changes by a predetermined level or more in the range of the set of unit periods.
The traceability change detection unit 104 constitutes a calculation unit together with the change probability analysis unit 103 described above.
Further, the operation performed by the traceability change detection unit 104 constitutes a calculation process together with the operation of the change probability analysis unit 103.
Also, the traceability change detection unit 104 constitutes an extraction unit.
The operation performed by the traceability change detection unit 104 constitutes an extraction process.

The traceability change point display unit 105 outputs the simultaneous change point extracted by the traceability change detection unit 104.
The traceability change point display unit 105 displays, for example, the simultaneous change points extracted by the traceability change detection unit 104 on the display.
The traceability change point display unit 105 constitutes an output unit.
Also, the operation performed by the traceability change point display unit 105 constitutes an output process.

  FIG. 12 shows an example of the hardware configuration of the specification selection selection device 100.

The specification document selection and reference device 100 according to the present embodiment is a computer.
The specification selection and reference device 100 includes a processor 901 and a storage device 902 as hardware.
The storage device 902 stores programs for realizing the functions of the history reading unit 102, the change probability analysis unit 103, and the traceability change detection unit 104.
Then, the processor 901 executes these programs to operate the history reading unit 102, the change probability analysis unit 103, and the traceability change detection unit 104 described later.
In FIG. 12, the processor 901 is executing a program for realizing the functions of the history reading unit 102, the change probability analysis unit 103, and the traceability change detection unit 104, that is, the processor 901 is the history reading unit 102, the change probability analysis A state of operating as the unit 103 and the traceability change detection unit 104 is schematically represented.

*** Description of operation ***
Next, an operation example of the specification selection and reference device 100 according to the present embodiment will be described.
First, an operation example of the history reading unit 102 will be described with reference to the flowchart shown in FIG.

In step S201, the history reading unit 102 acquires the change history of the document whose traceability is to be analyzed.
The means for inputting the change history is not particularly limited. In addition, the number of documents input at one time and the number of change history are not particularly limited.
In the example of FIG. 1, the history reading unit 102 acquires the change history 101 of the documents A and B.

  In step S202, the history reading unit 102 classifies the change history acquired in step S201 into arbitrary unit periods. In addition, it is not necessary to use a common period with respect to the entire change date and time included in the change history as this arbitrary unit period. It may be classified according to the specific system development period, such as the actual system development period and the development phase, in which a change occurs.

  In step S203, the history reading unit 102 associates the change history classified into the same category as the change history classified in step S202 as a point changed at the same time as the reference point (the same change point).

  Specific examples of steps S201 to S203 are shown in FIGS.

First, FIG. 3 shows an example of the change history acquired in step S201. FIG. 3 shows change histories of the document A and the document B.
Document A includes change history records P301 to P305, and document B includes change history records P306 to P310.
Each change history record is composed of the change date and the change content. The modification date indicates the date on which the description was changed in the document. The contents of the change indicate the item whose description has been changed and the contents of the change in the description.

FIG. 4 shows an example in which one year is applied as an arbitrary unit period of step S202, and the change history is classified on a yearly basis.
P401 to P403 of document A and P404 to P406 of document B can be classified into the years of 2012, 2013, and 2014, respectively.

  FIG. 5 shows an example in which the change history classified into the same classification in step S202, ie, each change history classified into 2012, 2013, and 2014, is associated in step 203.

  Next, an operation example of the change probability analysis unit 103 according to the present embodiment will be described with reference to the flowchart shown in FIG.

  In step S601, the change probability analysis unit 103 reads, from the storage device 902, change history information (hereinafter referred to as change history association information) associated in step S203.

  Next, in step S602, the change probability analysis unit 103 divides the change history association information read in step S601 into unit periods.

In step S603, the change probability analysis unit 103 extracts only the unit period in which the description of the reference portion is changed among the unit periods divided in step S602, and the extracted unit period is associated with the reference portion Calculate the appearance frequency of the existing change history.
In other words, the change probability analysis unit 103 selects a reference point, and the description has been changed in any unit period among one or more unit periods in which the description of the selected reference point is changed. Extract the place in the document data as the simultaneous change place. Then, the change probability analysis unit 103 calculates the change probability by examining the frequency at which the description is changed in the same unit period as the unit period in which the description of the reference portion is changed, for each change location at the same time.

FIG. 7 shows a specific example of step S603.
In FIG. 7, the change history of P701, that is, the change place of Section 3 Sec. 2 of Document A is used as a reference place.
The contents of FIG. 7 are the same as the contents of FIG. 5 except for the reference numerals of P701, P702, and P703.

  In the change history correspondence information of 2012, at Chapter 3 Section 2 (P 701) of Document A which is the standard location (1 year of 2012), Section 2 Section 1 of Document A and Section 10 Section 1 of Document B. It is understood that the description has been changed in Section 7, Ch. 2.

  In addition, in the change history association information in 2013, the description of Chapter 3, Section 2 of Document A, which is the reference point, is changed (P 702). Then, at the same time (one year of 2013) of Chapter 3, Section 2 (P702) of Document A, which is the standard part, it is described in Section 2, Section 2 of Document A, Section 7 and Section 7 of Section B, Section 7 and Section 2 It can be seen that has been changed.

  In addition, in the change history association information in 2014, the description in Chapter 3, Section 2 of Document A, which is the reference point, is changed (P 703). Then, it can be seen that the description is changed in Chapter 10 Section 1 of Document B at the same time (one year of 2014) of Chapter 3 Section 2 (P703) of Document A which is the standard location.

  In the example of FIG. 7, the description is changed at the same time as Chapter 3, Section 2, Section 2 of Document A, which is the standard part. Section 2, Section 1 of Document A, Section 7 Section 2, Section 7 Section 7 of Document B Each section of Chapter 1 corresponds to the same period change point.

The change probability analysis unit 103 calculates, for each change point at the same time, a change probability (the same time change rate) that is a ratio at which the description is changed at the same time as the reference point.
Specifically, the change probability analysis unit 103 calculates the change probability as shown in FIG.
As the description is changed only once in 2012, in Section 2.1 of Document A in the three years from 2012 to 2014, the change probability is calculated as 33.3%. On the other hand, since the description is changed twice in 2012 and 2013 in the three years from 2012 to 2014, the change probability is calculated to be 66.6% because the change is described in Chapter 7 Section 2 of Document B.
As described above, the change probability analysis unit 103 calculates the change probability of each change point at each period, for each set of unit periods (in the example of FIG. 8, the unit period: 3 years which is a set of 1 year).

For example, if the range of change history association information that can be acquired in step S601 is between 2012 and 2020, the change probability analysis unit 103 calculates the same probability as in the range of 2015 to 2017 and 2018 to 2020. Also against
The range of probability calculation does not necessarily have to be exclusive, and in the case of the above example, the change probability analysis unit 103 calculates the probability by overlapping the ranges such as 2012 to 2014, 2014 to 2014, and the like. You may

  Next, an operation example of the traceability change detection unit 104 according to the present embodiment will be described with reference to the flowchart shown in FIG.

In step S901, the traceability change detection unit 104 reads, from the storage device 902, the change probability of the simultaneous change point corresponding to the reference point, which is calculated in step S603.
The traceability change detection unit 104 reads, for example, the change probability shown in FIG.

In step S902, the traceability change detection unit 104 arranges the read change probabilities in time series in order of the period of the change history association information used for the calculation. That is, the traceability change detection unit 104 links the change probability in time series to derive a time transition of the change probability.
Then, the traceability change detection unit 104 calculates the change amount of the change probability for each simultaneous change point, and extracts the simultaneous change point whose absolute value of the change amount is equal to or larger than an arbitrary threshold value.
That is, the traceability change detection unit 104 analyzes the time transition of the change probability, and extracts the simultaneous change portion where the change probability changes by a predetermined level or more.

FIG. 10 shows an image of a method of calculating the change amount of the change probability in step S902.
In FIG. 10, the time transition of the change probability obtained by calculating the change probability in the range of 2012 to 2014, 2015 to 2017, 2018 to 2020, and 2021 to 2023 is shown.
More specifically, FIG. 10 shows a time transition of the change probability of the simultaneous change portion in the document B when the description of the portion α (corresponding to the reference portion) in the document A is changed.

  When the change probability is arranged in chronological order, the change probability shows an inherent transition for each change point at the same time. Specifically, it is possible to confirm the time transition as shown by reference numerals P1001 to P1003 in FIG.

Here, the traceability change detection unit 104 detects the magnitude at which the change probability has changed with an arbitrary threshold value.
The traceability change detection unit 104 detects, for example, between two calculated ranges of change probability, for example, the range of 2012 to 2014 and 2018 to 2020 and the range of 2015 to 2017 and 2021 to 2023, for example. Extract the same-time change location where the change probability has changed by 50% or more.

In the example of FIG. 10, the simultaneous change location β indicated by the code P1001 is about 66% less likely to change in the above range.
Therefore, the traceability change detection unit 104 extracts, for example, the simultaneous change location β illustrated in FIG.
As a result, the traceability change detection unit 104 can point out that the relevance between documents may have changed.

Further, in the example of FIG. 10, in the same-period change point γ indicated by the code P1002, in the above-described range, the change probability is increased by about 66%.
Therefore, the traceability change detection unit 104 extracts, for example, the simultaneous change location γ illustrated in FIG.
As a result, the traceability change detection unit 104 can point out that the relevance between documents may have changed.

In the example of FIG. 10, in the above-mentioned range, the simultaneous change location δ indicated by the code P1003 does not exceed 50% of the change probability set as the threshold.
For this reason, the traceability change detection unit 104 does not extract the simultaneous change point δ.

Since the same-time-changed portion is a portion whose description has been changed at the same time as the reference portion, it is considered that traceability information for the reference portion is provided in the same-time changed portion. If there is a change in the traceability information for the reference point at the same time change point, the change probability is also considered to change.
Therefore, when the change probability changes significantly, the traceability change detection unit 104 estimates that there is also a change in the traceability information with respect to the reference point at the same change point, and changes the change probability largely change. Extract.

Next, an operation example of the traceability change point display unit 105 according to the present embodiment will be described with reference to a display example shown in FIG.
In order to simplify the description, FIG. 11 shows an example where information of the same condition as the example shown in FIG. 10 is input.

The traceability change location display unit 105 displays only the graph of the time transition of the change probability of the simultaneous change location β extracted by the traceability change detection unit 104 and the graph of the time transition of the change probability of the concurrent change location γ. .
That is, in FIG. 11, only the graph (P1101) of the time transition of the change probability of the simultaneous change part β where there is a large change in the change probability (P1101) and the graph (P1102) of the change probability of the change part γ at the same time Be done.

*** Description of the effects of the embodiment ***
As described above, according to the present embodiment, it is possible that the user can efficiently change the traceability by showing only the information on the simultaneous change point extracted by the traceability change detection unit 104. It becomes possible to investigate a certain place.

  In addition, the traceability change point display unit 105 can show the state of transition of the change probability by a numerical value, a graph, or the like, which can help the user's judgment.

In the present embodiment, as shown in FIG. 11, an example in which only the graph of the same-time change portion extracted by the traceability change detection unit 104 is displayed has been described.
However, the traceability change point display unit 105 may display not only the graph of the simultaneous change point extracted by the traceability change detection unit 104 but also a graph of any simultaneous change point. For example, as shown in FIG. 10, the traceability change point display unit 105 may display a graph of all the simultaneous change points.

*** Description of hardware configuration ***
Finally, a supplementary description of the hardware configuration of the specification selection and reference device 100 will be made.
The processor 901 illustrated in FIG. 9 is an integrated circuit (IC) that performs processing.
The processor 901 is a central processing unit (CPU), a digital signal processor (DSP), or the like.
A storage device 902 illustrated in FIG. 9 is a random access memory (RAM), a read only memory (ROM), a flash memory, a hard disk drive (HDD), or the like.

The storage device 902 also stores an OS (Operating System).
Then, at least a part of the OS is executed by the processor 901.
The processor 901 executes a program that implements the functions of the history reading unit 102, the change probability analysis unit 103, and the traceability change detection unit 104 while executing at least a part of the OS.
When the processor 901 executes the OS, task management, memory management, file management, communication control, and the like are performed.
Further, at least one of information, data, signal values, and variable values indicating the results of processing of the history reading unit 102, the change probability analysis unit 103, and the traceability change detection unit 104 corresponds to the memory 902, a register in the processor 901, It is stored in at least one of the cache memories.
Also, programs for realizing the functions of the history reading unit 102, the change probability analysis unit 103, and the traceability change detection unit 104 are portable media such as magnetic disks, flexible disks, optical disks, compact disks, Blu-ray (registered trademark) disks, and DVDs. It may be stored in a recording medium.

Also, the "unit" of the history reading unit 102, the change probability analysis unit 103, and the traceability change detection unit 104 may be read as a "circuit" or a "process" or a "procedure" or a "process".
The specification selection and reference device 100 may be realized by a processing circuit. The processing circuit is, for example, a logic integrated circuit (IC), a gate array (GA), an application specific integrated circuit (ASIC), or a field-programmable gate array (FPGA).
In this case, the history reading unit 102, the change probability analysis unit 103, and the traceability change detection unit 104 are each realized as part of the processing circuit.
Note that, in this specification, the upper concept of the processor, the memory, the combination of the processor and the memory, and the processing circuit is referred to as "processing circuit".
That is, the processor, the memory, the combination of the processor and the memory, and the processing circuit are specific examples of the "processing circuit".

  100 specification selection selection device, 101 change history, 102 history reading unit, 103 change probability analysis unit, 104 traceability change detection unit, 105 traceability change location display unit.

Claims (7)

One of the plurality of document data that is changed at the same time as the reference point whose description has been changed, which is an arbitrary position in any document data of the plurality of document data A calculation unit that calculates the same-time change rate, which is a ratio at which the description is changed at the same time as the reference place, and derives the time transition of the same-time change rate.
An extraction unit that analyzes a time transition of the same-period change rate, and extracts a same-time change location where the same-time change rate changes by a predetermined level or more;
An information processing apparatus comprising: an output unit that outputs the simultaneous change location extracted by the extraction unit. The calculation unit
From the plurality of document data, for each unit period, extract a plurality of locations whose description has been changed,
Select the reference point from among the plurality of extracted points,
The locations in the plurality of document data whose descriptions have been changed in any unit period of one or more unit periods in which the description of the selected reference location has been changed are extracted as simultaneous change locations, ,
The information processing apparatus according to claim 1, wherein the frequency of change in description is calculated by examining the frequency of the description change in the same unit period as the unit period in which the description of the reference portion is changed, for each change location at the same time. . The calculation unit
Calculate the same-time change rate of each same-time change point for each set of arbitrary multiple unit periods,
The information processing apparatus according to claim 1, wherein the time transition of the calculated simultaneous change rate is calculated by connecting the calculated simultaneous change rate in time series. The output unit is
The information processing apparatus according to claim 1, wherein the time transition of the same-time change rate of the simultaneously-changed place extracted by the extraction unit is output. The output unit is
The information processing apparatus according to claim 1, which outputs a time transition of a simultaneous change rate of an arbitrary simultaneous change point. In a plurality of document data whose description has been changed at the same time as the reference position where the description has been changed, which is an arbitrary position in any document data of a plurality of document data by the computer Calculation process to calculate the same-period change rate, which is the ratio of the description changed at the same time as the above-mentioned reference place, and derive the time transition of the same-time change rate When,
An extraction process in which the computer analyzes the time transition of the same-time change rate, and extracts the same-time change location where the same-time change rate changes by a predetermined level or more;
An information processing method including: an output process in which the computer outputs the simultaneous change part extracted by the extraction process; One of the plurality of document data that is changed at the same time as the reference point whose description has been changed, which is an arbitrary position in any document data of the plurality of document data Calculation processing for calculating the same-period change rate, which is a ratio at which the description is changed at the same time as the reference point, and deriving the time transition of the same-time change rate.
An extraction process of analyzing a time transition of the same-time change rate and extracting a same-time change location where the same-time change rate changes by a predetermined level or more;
An information processing program that causes a computer to execute an output process of outputting the simultaneous change part extracted by the extraction process.

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