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pl:miw:2009:piw09_hades_1:hekate_case_hello [2009/06/09 21:39]
piw09 utworzono
pl:miw:2009:piw09_hades_1:hekate_case_hello [2019/06/27 15:50]
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-====== The HeKatE Case HELLO ====== 
- 
-Eliasz Kańtoch 
-Tomasz Michalski 
- 
-This case analysis is based on hekate process. ​ 
- 
- 
-====== Introduction ====== 
- 
-====== Stages ====== 
- 
-The process is involves the following the stages described below. 
- 
-===== Description ===== 
-The aim of the system is to tell greetings based on the time of day and customer'​s attributes. 
- 
-===== Conceptualization ===== 
- 
-In this stage some primary concepts are identified. 
-These can be //​attributes//,​ //​properties//,​ //objects// (in the general sense), or //rules//. 
- 
-The output of this stage is a preliminary list of possible //​attributes//,​ //​properties//​. 
-The list //may be// somehow structured, or formalized. 
-Though, it is not mandatory. 
- 
-==== Vocabulary ==== 
- 
-*Greeting is a text that consists of salutation and title of the person. 
-*Salutation is one of the following: Good Morning, Good Afternoon, Good Evening, Good Night. 
-*Title of person is based on status of the person. ​ 
-*Status are age,martial status and gender. ​ 
-*Gender – male albo female 
-*Martial status – married i single 
- 
-==== Original Rules ==== 
-In a case where an already designed system is being modeled, some ready rules can be provided. 
-In the H approach these rules should be considered a mean of conceptualization only. 
-These rules are often informal, or semi-formal. 
-In the [[business rules]] approach number of rule types are identified, that do not map in a straightforward way to the H logical design. 
- 
-<​code>​ 
-Rule: 1    
-if     the Hour is '​between 0 and 11' ​ 
-then   ​Greeting is 'Good morning'​ 
- 
-Rule: 2    
-if     the Hour is '​between 12 and 17' ​ 
-then   ​Greeting is 'Good afternoon'​ 
- 
-Rule: 3    
-if     the Hour is '​between 18 and 22' ​ 
-then   ​Greeting is 'Good evening'​ 
- 
-Rule: 4    
-if     the Hour is '​between 23 and 24' ​ 
-then   ​Greeting is 'Good night' 
- 
- 
-</​code>​ 
- 
- 
- 
- 
-===== Conceptual design ===== 
- 
-The conceptual design stage is the beginning of the formalized hierarchical process. 
-Based on the concepts, or vocabulary, the ARD properties and attributes are being identified, as well as functional dependencies between them stated. 
- 
-See the [[ARDplus]] design for the detailed specification. 
- 
-The output of this stage is the low-level [[ARDplus]] diagram with //physical attributes//,​ plus attribute domains, and types description. 
- 
-This output as a whole is [[:​hekate:​hekate_process#​encoding|encoded]] with use of the [[HeKatE Markup Language]]. 
- 
-==== General Conceptual Design ==== 
-In a general case, the ARD diagram is built using the vocabulary previously identified. 
- 
-==== Directed Conceptual Design ==== 
-In a case where the [[hekate_process:​original rules]] were provided, the physical attributes identified during the design should match the original rules. 
-The lowest ARD level should match the structure of the original rule-base. 
- 
-==== Refined Conceptual Design ==== 
-This is also a case where the [[hekate_process:​original rules]] were provided. 
-However, the design is not aimed at matching the original rule-base. 
-The goal is to improve the original design with the HeKatE approach. 
- 
-===== Physical Attribute Specification ===== 
-This is actually the partial output of the [[:​hekate:​hekate_process#​conceptual design]] 
-in a //​standalone//​ form, that is only the appropriate [[:​hekate:​hekate_process#​ATTML]] ​ encoding. 
-It is a natural input for the next stage. 
-It is also a point, where the formalized [[attribute specification]] can be shared with other systems, tools and approaches. 
- 
-TBC: 
-at this stage it should be possible to import attributes from other formalized sources, e.g. RIF-based systems. 
- 
-TBC: 
-this should be compatible with the attributive logic concepts and definitions. 
- 
- 
-===== Structuralization ===== 
- 
-Using a partial output of the [[:​hekate:​hekate_process#​conceptual design]] 
-that is only the apropriate [[hekate markup language|ARDML]] dependencies. 
- 
-In this stage a fully or semi automated generation of the XTT table schemas (rule prototypes) is performed. 
-Using the lowest ARD level XTT schemes are generated. 
-The inference structure (table-to-table links) is also built which serve as a guideline for future XTT processing order. 
- 
-The algorithm is given in the //ECAI submission//​ FIXME. 
- 
-The //output// of this stages is the XTT schemes structure [[:​hekate:​hekate_process#​encoding|encoded]] with the use of the [[XTTML]]. 
- 
-===== Logical design ===== 
-In this stage the actual design of the [[XTT]] tables is put forward. 
-Tables are filled with rules, and extra, fine-grained links can be added (row-to-row) links. 
- 
-See the [[XTT]] design for the detailed specification. 
- 
-WIP: 
-The application of the XTT+ a.k.a. GREP extensions should be considered here, with: 
-  * grouped attributes 
-  * scope operators 
-Things that seem to be needed, in the final verision, but too complex now: 
-  * hybrid operators (HOP) 
-Things considered to complex for the first implementation are: FIXME 
-  * labeled links 
-  * other GREP? 
- 
- 
-The //output// of this stages is the full XTT structure [[:​hekate:​hekate_process#​encoding|encoded]] with the use of the [[XTTML]]. 
- 
-===== On-Line Analysis ===== 
-In this stage the logical description of the XTT is used to conduct a formal analysis of selected formal properties such as: 
-  * completeness 
-  * redundancy -> knowledge optimization 
-  * determinism 
-  * inference -> inference optimization 
-  * other? 
- 
-WIP 
-currently only some old experiences form the original XTT are available. 
- 
-TBC 
-Several aspects, cases, classes, levels should be considered, e.g.: 
-  * local (table) vs. global (diagram) 
-  * relation to scope operators 
-  * relation to grouped attributes 
- 
- 
-===== Physical Design ===== 
-The executable design generation. 
- 
-==== Prolog Implementation ==== 
-The XTT representation has a clear, well-defined Prolog representation. 
-This representation is fully automatically generated from the XTT design. 
- 
-WIP 
-currently only some old experiences form the original XTT are available. 
- 
-TBC 
-Integration of BLOBS, data structures, lists, etc, has to be considered. 
-So is the use and integration of the HOP. 
- 
-==== UML Serialization ==== 
-WIP 
-An object-oriented serialization of the XTT is to be provided. 
-It should match UML on the diagram level, and Java on the code level. 
- 
-WIP 
-Current naive idea is to map  
-  * tables -> objects 
-  * attributes -> attributes 
-  * rules -> methods 
- 
-==== Rule Engine Implementation ==== 
-WIP 
-Generate rules for some well-established rule engines, such as Drools. 
- 
-====== Integration ====== 
-The stages are integrated with: 
-  * knowledge encodings 
-  * transformations 
-  * other? 
- 
-FIXME 
-This needs filling! 
- 
-===== Encoding ===== 
-Currently XML encodings to be used: 
-  * ATTML 
-  * ARDML 
-  * XTTML 
-The are now integrated into //HML// the [[Hekate Markup Language]]. 
- 
-===== Knowledge Markups ===== 
-Aspects: 
-  * the stack: XML -> RDF -> RIF -> R2ML 
-  * ATTML <-> RDF 
-  * RIF <-> ARD 
-  * RIF <-> XTT 
-  * R2ML <-> XTT 
-  * ontologies <-> ATTML 
-  * ontologies <-> ARDML 
- 
-===== Transformations ===== 
-FIXME 
- 
-====== Tools ====== 
-Current tools: 
-  * VARDA 
-  * HQed 
- 
- 
- 
-====== Case Template ====== 
- 
-<​code>​ 
-====== Introduction ====== 
- 
-===== Description ===== 
- 
-===== Conceptualization ===== 
- 
-==== Vocabulary ==== 
- 
-==== Original Rules ==== 
- 
-===== Analysis ===== 
- 
-===== Conceptual design ===== 
- 
-==== General Conceptual Design ==== 
- 
-==== Directed Conceptual Design ==== 
- 
-=== Full ARD Model === 
- 
-==== Refined Conceptual Design ==== 
- 
-===== Physical Attribute Specification ===== 
- 
-===== Structuralization ===== 
- 
-===== Logical design ===== 
- 
-</​code>​ 
  
pl/miw/2009/piw09_hades_1/hekate_case_hello.txt · ostatnio zmienione: 2019/06/27 15:50 (edycja zewnętrzna)
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