IIIStructuredAnalysisandDesignTechnique(SADT)SADT

更新时间:2023-06-19 09:32:51 阅读: 评论:0

海鲜有哪些2004 John Mylopoulos
SADT  -- 1
Conceptual Modelling                                                      CSC2507
III. Structured Analysis and Design
Technique (SADT)
History
Data and Activities SADT Diagrams
今年过年时间>莫大是什么意思The SADT Analysis Process
Data Flow Diagrams
2004 John Mylopoulos
SADT  -- 2
应急管理办法
Conceptual Modelling                                                      CSC2507
SADT:  Structured
Analysis and Design Technique
I Diagrammatic notation for constructing a sketch for an application.
I Offers boxes to reprent entities and activities.I Offers a variety of arrows to relate boxes.
I
Boxes and arrows have an associated (informal)mantics; urs are aided by box and arrow labels,other informal documentation.
I Has inspired many other commercial tools.
I Has been in u since the mid-venties [Ross77].
I
SADT is available as a commercial CASE tool under the name IDEF0.
2004 John Mylopoulos
SADT  -- 3
Conceptual Modelling                                                      CSC2507
SADT Notation
炒菜最好的油排行Label
...
I n p u t s
O u t p u t s
Control
RunHouhold
Needs &Desires Market Experience
闭月羞花造句
Food&Clothing Money Vegetables
Payments Plan&Budget
小孩坐飞机An SADT diagram
consists of boxes and arrows
2004 John Mylopoulos
SADT  -- 4
Conceptual Modelling                                                      CSC2507
SADT Primitives
I
Things  and happenings
Things  -- objects, data, nouns, information, substances,passive
Happenings  -- operations, activities, verbs, processing,events, active
I Two types of boxes: data  boxes, activity boxes
I Boxes interconnected through arrows, form a diagram.I
Each diagram includes up to six boxes;  each box has its own diagram, leading to hierarchical models of activities and data.
Budget Seeds
小说读后感

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