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Structuring system logical requirements

Xem 1-14 trên 14 kết quả Structuring system logical requirements
  • Business system development, Information systems, Information systems analysis, Application software, Systems development, Structuring system logical requirements

    ppt29p larachdumlanat124 28-11-2020 6 0   Download

  • In this chapter we talked about structuring system logical requirements. We today’s lecture we will: Define four types of business rules, talk about the class diagrams, compare the capabilities of class diagrams vs. E-R diagrams, relate data modeling to process and logic modeling.

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  • We today’s lecture we will: Use structured English as a tool for representing steps in logical processes in data flow diagrams; use decision tables and decision trees to represent logical choice in conditional statements; select among structured English, decision tables, and decision trees.

    ppt28p larachdumlanat124 28-11-2020 0 0   Download

  • In this lecture, we: Used structured English as a tool for representing steps in logical processes in data flow diagrams; used decision tables and decision trees to represent logical choice in conditional statements; selected among structured English, decision tables, and decision trees.

    doc6p larachdumlanat124 28-11-2020 4 0   Download

  • In this lecture, we will: Define key data modeling terms; draw entity-relationship (E-R) and class diagrams to represent common business situations; explain the role of conceptual data modeling in is analysis and design; distinguish between unary, binary, and ternary relationships; define four types of business rules; compare the capabilities of class diagrams vs; E-R diagrams; relate data modeling to process and logic modeling.

    ppt33p larachdumlanat124 28-11-2020 4 0   Download

  • We today’s lecture we will: Define key database design terms, explain the role of database design in the is development process, transform E-R or class diagrams into normalized relations, merge normalized relations from separate user views into a consolidated set of well-structured relations, choose storage formats for fields , translate well-structured relations into database tables, explain when to use different types of file organizations, describe the purpose and appropriate use of indexes.

    doc11p larachdumlanat124 28-11-2020 3 0   Download

  • In this chapter you will learn: Defined key data modeling terms; drew entity-relationship (E-R) and class diagrams to represent common business situations; explained the role of conceptual data modeling in is analysis and design; distinguished between unary, binary, and ternary relationships.

    doc8p larachdumlanat124 28-11-2020 4 0   Download

  • Benefits of the PLC compared to conventional solutions such as electrical, electropneumatic or electrohydraulic solutions Functions of system components of a PLC Commissioning a PLC Application criteria for mechanical, optical, capacitive and inductive proximity sensors Sequence control and parallel logic Systematic programming of a PLC in accordance with international standard IEC 1131-3 IEC 1131-3 programming languages: Function Block Diagram, Ladder Diagram, Statement List, Structured Text and Sequence Language A PLC (Festo FC34, SIMATIC S7-300 or Allen ...

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  • A scheme for syntax-directed translation that mirrors compositional model-theoretic semantics is discussed. The scheme is the basis for an English translation system called PArR and was used to specify a semantically interesting fragment of English, including such constructs as tense, aspect, modals, and various iexically controlled verb complement structures. PATR was embedded in a question-answering system that replied appropriately to questions requiring the computation of logical entailments. ...

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  • After studying this chapter you will be able to: Understand logical process modeling via data flow diagrams (DFDs); draw DFDs of well-structured process models; decompose DFDs into lower-level diagrams; balance high-level and low-level DFDs; explain differences between current physical, current logical, new physical, and new logical DFDs. use DFDs for analyzing information systems. explain use cases and use case diagrams.

    doc6p larachdumlanat124 28-11-2020 8 0   Download

  • In this lecture, we will: Understand logical process modeling via data flow diagrams (DFDs); draw DFDs of well-structured process models; decompose DFDs into lower-level diagrams; balance high-level and low-level DFDs;...

    ppt25p larachdumlanat124 28-11-2020 2 0   Download

  • Surrounded as we are by software for personal computers, electronic gadgets and entertainment websites, it is easy to lose sight of the massive amount of software embedded in critical systems. I was surprised when I found out that the computerized systems in modern cars have half a million lines of code, and that electronics account for 25% of their cost and this percentage is forecast to increase.

    pdf225p tinhbanpt 12-12-2012 84 6   Download

  • The Class Model in the UML is the main artefact produced to represent the logical structure of a software system. It captures the both the data requirements and the behaviour of objects within the model domain. The techniques for discovering and elaborating that model are outside the scope of this article, so we will assume the existence of a well designed class model that requires mapping onto a relational database. The class is the basic logical entity in the UML. It defines both the data and the behaviour of a structural unit.

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  • A semantics of linguistic categories like tense, aspect, and certain temporal adverbials, and a theory of their use in defining the temporal relations of events, both require a more complex structure on the domain underlying the meaning representations than is commonly assumed. The paper proposes an ontology based on such notions as causation and consequence, rather than on purely temporal primitives.

    pdf7p bungio_1 03-05-2013 46 1   Download

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