WO2001029703A1 - Procede pour creer une structure hierarchique variable d'acces a des actions dans un systeme informatique - Google Patents
Procede pour creer une structure hierarchique variable d'acces a des actions dans un systeme informatique Download PDFInfo
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- WO2001029703A1 WO2001029703A1 PCT/FR2000/002865 FR0002865W WO0129703A1 WO 2001029703 A1 WO2001029703 A1 WO 2001029703A1 FR 0002865 W FR0002865 W FR 0002865W WO 0129703 A1 WO0129703 A1 WO 0129703A1
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- node
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- level
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/26—Visual data mining; Browsing structured data
Definitions
- the present invention relates generally to the consultation of computer databases.
- the presentation of the data is generally carried out by means of a two-dimensional table, each row relating to a datum, and each column containing in the row considered an attribute or property of this datum.
- This approach has major drawbacks as soon as the set of data presented exceeds a few tens, and becomes humanly impractical with a few hundred data.
- some users will be interested in certain properties of the data and not others, this interest being able to vary very quickly over time, even for the same user.
- Prioritization techniques make it possible, in a known manner, to classify data into categories and sub-categories, and to enable information to be retrieved, various groupings, via a query language, such as SQL ("Syntax Query Language") ) will allow the informed user to make various classifications that suit him.
- SQL Structure Query Language
- This approach is unfortunately the work of a specialist, very unsuitable for the general public who is generally not able to easily and quickly build an SQL or other query. This is why the user generally only has a limited number of types of predetermined requests, to which he has no access allowing them to be modified.
- the first is related to the amount of information sent from the server to the client.
- the second is related to the access of databases present in the server, which proves to be extremely expensive in processor time and in RAM, which slows down the response times considerably in a client / server environment when the number of clients during the session is high.
- the present invention aims to overcome these limitations of the state of the art and to propose a method which makes it possible to organize a data table in a hierarchical manner on the basis of the content of the columns of the table. More specifically, the object of the invention is to reorganize the hierarchy of the data presented, by assigning any order to the columns of the table, this in an interactive and autonomous manner, for example by presenting these data hierarchically by drop-down menus.
- the present invention provides a method for creating a variable hierarchical structure allowing a user to trigger by successive choice an action among a plurality of actions in a computer system, the method being characterized in that it comprises the steps consisting in: :
- a tree structure of nodes comprising a number of node levels equal to the number of key columns of said subset increases by one, each node containing at least one item corresponding to a category datum or action of the data table and an identifier, a first level of the node structure containing a single node, a plurality of headings of which correspond to a plurality of category data present in the category column of the data table appearing in first in the order of travel, and each level following the first level containing, respectively attached to the node or to each node of the level immediately below, a set of nodes equal to the number of headings in said node to which they are attached, and each identifier of higher level node to the first level being built by a combination of the identifier of the node of the level immediately below to which it is attached and of an item contained in this same node.
- the method further comprises the step of selectively displaying selection menus using the headings contained in the various nodes. * the method further comprises the step of displaying a representation of the tree structure with its headings.
- each node contains one or more elements, each element containing an item, data associated with a node of lower level, and data associated with a node of higher level.
- the data of the elements contained in this node include data indicating that there is no lower level node.
- the data of the elements contained in this node include a data indicating that there is no node of higher level.
- the method comprises an intermediate step consisting, for each node, in developing a character string constituted by the concatenation of the contents of the data table for a given row and in an order of columns indicated by the defined order.
- the process further comprises the steps consisting: - for each new character string developed, to associate with this string a level node immediately lower, and memorize the chain / knot pair,
- FIGS. 1a and 1b schematically illustrate two types of path of a tree structure
- FIG. 2 is a flow diagram illustrating an algorithm for generating names for a row of a table according to a given order
- FIG. 3 is a flow diagram illustrating a data organization algorithm using the generation algorithm of FIG.
- FIGS. 4a to 4c illustrate the content of the nodes obtained with the algorithm of FIG. 3 for the four products of a given data table further on by way of example
- FIGS. 5a to 5d illustrate the course of the menus for four possible classifications defining four modes of consultation.
- a data table in the context of the present invention, is a two-dimensional table, each row corresponding to a datum, and each column of the row considered containing a characteristic or property of this datum. It should be noted here that the method for storing this information is not to be considered here.
- the data table can come from a text or binary file, result from the execution of a local or remote procedure, be directly constituted from a table belonging to a database, or even result from a request for SQL type
- a data table in the context used here, is said to be homogeneous if all the characteristics of one data exist for all the other data. For example, if a characteristic is named "Color", and if all the data presented has a non-empty "Color" characteristic, then the table is homogeneous. In the case where a data table is not homogeneous, it is possible to make it homogeneous by extending the definition of one or more characteristics.
- the value "No” can be assigned in the case where it does not make sense. Similarly, for a numerical data, the value "0" can be used as a particular marker.
- a hash table allows data to be associated with a value, thus creating pairs (key, value).
- a hash table is generally used in the context of databases, allowing rapid, even immediate, access to one or more columns considered important, and generally called keys. This organization promotes the speed of execution linked to a search, to the detriment of the space used to store the data. It makes it possible to answer the questions "does the data X exist?" "Or” what is the value of the Y key? Without having to perform an explicit loop on all of the existing data.
- a dictionary in the context of the present invention, is a hash table associating a code with a character string. Using a dictionary can in most cases reduce the space required for storage or transmission of a data table, in the case where this contains a large repetition of long identical character strings. A dictionary can also make it possible to extend the number of interface languages for a data table, without having to modify the data themselves.
- a drop-down menu is a graphic object allowing to display a hierarchical data space according to a fixed organization. It consists of one or more menus, each containing one or more menu items. These menu items can be linked to other menus, which are then considered submenus of the menu containing this menu item.
- This object is generally reactive with the keyboard or the mouse, allowing to display or hide the submenus at the user's discretion, by the passage of the mouse pointer over a given element, or the click of a button of the mouse.
- there is at most one menu displayed for each level of hierarchy which in principle makes it possible to display on the screen the structure of a large data space in a very small space.
- An essential aspect of the present invention is based on the use of hash tables, and an adequate naming of the menus being created.
- the use of hash tables optimizes the search for an object according to a key or category, the key used here being precisely the name used in the menus.
- the data Di can be represented by a series of character strings, corresponding to the value of each column c ( ⁇ , j), placed in a given order, arbitrary.
- a name variable (D ⁇ ) is established in the following manner:
- nouns (D ⁇ ) (c ( ⁇ , 0), c ( ⁇ , 0) -c ( ⁇ , l)., c ( ⁇ , 0) -c ( ⁇ , l) - -c (y)., c ( ⁇ , 0) -c ( ⁇ , l) - -c ( ⁇ , m) ⁇
- this is a multidimensional variable containing, at a given position j, the concatenation of the character strings corresponding to the values of the cells of the columns 0 to j for the line considered, separated two by two by dashes.
- the Names variables are formed by using either the ascending order of the columns 0 to m-1, as carried out above, or by using an order of columns fixed by an Order variable, which will be explained in more detail far, so that you can browse the categories defined in these columns according to any desired priority.
- four classifications are possible, namely two classifications by taking each column one by one, without taking account of the other column, and two classifications by considering each column, then with a lower priority the other column.
- object-oriented languages like the "Java” (registered trademark) language from Sun Microsystems, or "C ++" language for example.
- Two objects are used here, namely an object of type Node, and an object of type Element. These objects adopt a tree structure: a given Node has a single Parent Node (except if it is the highest level node) and one or more child Nodes (except if it is a lowest level).
- An Element type object has: a Message, which constitutes what should be displayed in a menu,
- a node type object has:
- Node object in the form: ⁇ Name, Level, Link, ⁇ List ⁇
- m is the number of columns in the table
- c ( ⁇ , j) is the value of column j at line î, as indicated above
- string ⁇ x ⁇ is a function creating a character string consisting of x
- concatenation (x, y) is a function creating a character string consisting of string ⁇ x ⁇ followed by string ⁇ y ⁇ ;
- Order indicates a given order for browsing all or part of the different columns 0 to m-1 of a table
- Order [k] designates the number of the column in the kth location of Order, k varying between 0 and m-1 (or between
- Step 210 of FIG. 2 is a step of creating a first list element [0] of a list for the line î, the list element [0] being constituted by chain ⁇ c ( ⁇ , order [0] ] ⁇ , namely the character string constituted by the element contained in line î and in the column fixed by the order value [0].
- step 220 is carried out a progressive incrementation of a variable Col, starting from 1 to m-1.
- Step 230 consists in updating the list, by constructing the list element [col] by concatenating the previously established value list [col-1] and by performing the operation consisting in completing the chain list [col-1 ] by a dash then by the chain string ⁇ c (i, order [col] ⁇ , that is to say by the content of the table in the i-th row and in the column fixed by the value order [col ].
- Step 240 constitutes a test to determine whether all the columns for row i have been traversed
- FIG. 3 illustrates the main data organization algorithm according to the present invention.
- box 310 the following information is applied to the algorithm:
- Step 320 is an initialization step consisting of:
- Step 330 makes it possible to browse successively all the rows i of the table, from the first to the last.
- step 340 uses the name generation algorithm of FIG. 2 to create a set of Name names (i, Order) constituted by list [0], ..., list [m-1 ]. Each of these names is called name (j), with j varying from 0 to m-1.
- This step also indicates that the Parent Node for the Elements that will be created in each step 380 (see below) is the “root” Node defined above.
- Step 350 makes it possible to successively process the m values of Name (j).
- step 360 determines whether there exists in the hash table a couple containing name (j) as the first element of the couple, that is to say if one has already associated a Node object with name (j) in the hash table.
- step 370 the program goes to step 370, where it is established that the Parent Node of the element in question question is the one listed in the hash table in association with name ().
- the next step 410 tests whether all the rows of the table have been traversed. If not, we go back to step 330 to process the next line and if so, the program goes to step 420 in which we can now create the different menus from the elements created in step 400, these menus responding for example to the action of a mouse.
- FIGS. 4a to 4c we have illustrated the progressive construction of the nodes corresponding to the four-line table indicated above with the algorithm described with reference to FIG. 3.
- Each rectangle corresponds to a Node, the upper part of the rectangle containing the Name of the Node and its lower part containing the message or messages of the element or elements associated with this node, that is to say appearing in
- Figure 5a illustrates the menu structure obtained by applying the algorithms described above using as Order (1,2,3) that is to say the order of the original table.
- Figure 5b illustrates the menu structure obtained using Order (2,1,3).
- Figure 5c illustrates the structure obtained using as Order (1,3).
- Figure 5d illustrates the structure obtained using as Order (2,3). It will thus be noted that the variable Order can have a dimension equal to m-1 (case of FIGS. 5a and 5b), but that it can also have a dimension less than m-1 (case of FIGS. 5c and 5d), in which case the number of levels in the menu hierarchy is reduced accordingly.
- the user is offered, for example in an independent menu or by dialogue and selection in a specific window, the order to be used, this being indicated in plain text to the user.
- the order to be used this being indicated in plain text to the user.
- the user wishes to use the order (2,1,3), we can designate the corresponding choice by "choice by brand, then by product, then by product name?" ".
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Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00968042A EP1222575A1 (fr) | 1999-10-15 | 2000-10-13 | Procede pour creer une structure hierarchique variable d'acces a des actions dans un systeme informatique |
AU78006/00A AU7800600A (en) | 1999-10-15 | 2000-10-13 | Method for creating a variable hierarchical structure for accessing actions in an information processing system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9912887A FR2799855A1 (fr) | 1999-10-15 | 1999-10-15 | Procede pour creer une structure hierarchique variable d'acces a des actions dans un systeme informatique |
FR99/12887 | 1999-10-15 |
Publications (1)
Publication Number | Publication Date |
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WO2001029703A1 true WO2001029703A1 (fr) | 2001-04-26 |
Family
ID=9550981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/002865 WO2001029703A1 (fr) | 1999-10-15 | 2000-10-13 | Procede pour creer une structure hierarchique variable d'acces a des actions dans un systeme informatique |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1222575A1 (fr) |
AU (1) | AU7800600A (fr) |
FR (1) | FR2799855A1 (fr) |
WO (1) | WO2001029703A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7706386B2 (en) * | 2005-10-26 | 2010-04-27 | Cisco Technology, Inc. | Fast 2-key scheduler |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5630125A (en) * | 1994-05-23 | 1997-05-13 | Zellweger; Paul | Method and apparatus for information management using an open hierarchical data structure |
WO1999014651A2 (fr) * | 1997-09-17 | 1999-03-25 | Tenfold Corporation | Procede et systeme de creation de logiciel d'application pour base de donnees requerant une programmation minimale |
-
1999
- 1999-10-15 FR FR9912887A patent/FR2799855A1/fr not_active Withdrawn
-
2000
- 2000-10-13 WO PCT/FR2000/002865 patent/WO2001029703A1/fr not_active Application Discontinuation
- 2000-10-13 AU AU78006/00A patent/AU7800600A/en not_active Abandoned
- 2000-10-13 EP EP00968042A patent/EP1222575A1/fr not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5630125A (en) * | 1994-05-23 | 1997-05-13 | Zellweger; Paul | Method and apparatus for information management using an open hierarchical data structure |
WO1999014651A2 (fr) * | 1997-09-17 | 1999-03-25 | Tenfold Corporation | Procede et systeme de creation de logiciel d'application pour base de donnees requerant une programmation minimale |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7706386B2 (en) * | 2005-10-26 | 2010-04-27 | Cisco Technology, Inc. | Fast 2-key scheduler |
Also Published As
Publication number | Publication date |
---|---|
AU7800600A (en) | 2001-04-30 |
FR2799855A1 (fr) | 2001-04-20 |
EP1222575A1 (fr) | 2002-07-17 |
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