MIS 341 Midterm

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O There are many types of information systems o Six common systems are found in most businesses · Transaction processing systems (TPS) · Management Information Systems (MIS) · Executive Information Systems (EIS) · Decision Support Systems (DSS) · Communication Support Systems · Office Support Systems o Business systems center around transactions o Systems must adapt to changing technology

Develop system requirements and design models Define problem and outline solution

Develop alternatives consistent with corporate strategy

O Analysts manage issues ranging from technical to interpersonal o Analysts must commit to lifelong learning o Technical Skills and Knowledge o Business Skills and Knowledge o People Skills and Knowledge

· Should grasp many types of technologies · Be informed of tools and techniques · Common Software Tools: v IDEs v CASE · Common Techniques: v Project Planning v Cost Planning Analysis v Architectural Analysis

· Understand organizational structure · Understand business concern · Study business administration

· Knowledge of people center around thinking and feeling · Used to adapt systems to users · Ability to listen empathetically

· OO concepts became very popular in early 90s, resulting in many different technologies and notations · In 1995, Rational Software created a standard set of techniques/methodologies to OOSAD known as Unified Modeling Language (UML) · Rational was sold for $2.1B to IBM on February 20, 2003

A language for modeling object-oriented software, used for visualizing, specifying, constructing, and documenting

· UML model is composed of three building blocks: v Things- modeling elements, such as classes, use cases, activities, etc. v Relationships- these tie things together and specify how two or more things are semantically related, such as association, aggregation, generalization, etc. v Diagrams- view into UML models § They contain collections of things and relationships used to visualize what the system will do and how it will do it

O SSAD · Starts from identifying processes o OOSAD · Starts from identifying objects and their relationships

O Reflects a single paradigm o Facilitates architectural and code reuse o Reflects real world models more closely o Encourages stability o Is adaptive to change

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· CRM and SCM: o Main focus is on external processes of a business o Includes internal processes that interact with either customers (CRM) or suppliers (SCM) · ERP: o Main focus is on internal processes of a business, cross-functional