Term
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Definition
| The greatest risk in launching a new IS occurs when a company tries to decide how the system will be constructed before determining what the system needs to do. |
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Definition
| a company-wide application; can include payroll systems, order processing systems, and company communication networks |
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Definition
| the number of transistors on an integrated circuit would double about every 24 months |
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| Older systems that may be outdated |
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Term
Business Process Modeling Notation
(BPMN) |
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Definition
| a standard language for computer-based modeling tools; includes various shapes and symbols to represent events, processes, and workflows; also includes multi-purpose graphical applications (Visio) |
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Term
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Definition
the process of identifying long-term organizational goals, strategies, and resources; SWOT analysis examines a firms technical, human, and financial resources; no standard approach
1) Mission Statement, 2) identify goals, 3)short-term objectives, 4) outcome for stakeholders |
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Electronic Data Interchange
(EDI) |
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Definition
| makes relationships with suppliers critically important; Enables JIT |
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Term
Just-In-Time inventory systems
(JIT) |
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Definition
| rely on computer-to-computer data exchange to minimize unnecessary inventory; purpose is to provide the right product at the right place and time |
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Term
Customer Relationship Management
(CRM) |
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Definition
| integrates all customer-related events and transactions, including marketing, sales, and customer service activities |
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Term
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Definition
| a proposed system will be used effectively after it has been developed; management support, workforce reduction, training users, user involvement, new demands on users, |
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Definition
| technical resources needed to develop, purchase, install, or operate the system; company has necessary hardware, software, and resources, need technical expertise, sufficient capacity, prototype required, |
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Definition
| projected benefits of the proposed system outweigh the estimated costs, including on-going support and maintenance; tangible & intangible benefits |
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Definition
| project can be implemented in an acceptable time frame |
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Term
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Definition
| can be measure in dollars; new scheduling system to reduce overtime, package tracking system, inventory control system |
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Term
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Definition
| advantages that are difficult to measure in dollars, but are important to the company; user-friendly system, sales tracking system, new website |
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Term
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Definition
| must be completed on time, within budget, and deliver quality products that satisfy users and meet requirements |
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Term
| Project Manager monitoring |
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Definition
| guiding, supervising, and coordinating the project teams workload; monitor the progress, evaluate the results, and take corrective action when necessary to control project and stay on time |
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Term
Program Evaluation Review Technique (PERT)/
Critical Path Method (CPM) |
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Definition
| PERT developed by Navy to manage very complex projects; CPM developed by private industry to meet similar needs; bottom-up technique: analyze large, complex problems as a set of individual tasks & an estimate of how long it will take to complete each task |
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Term
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Definition
| 1) list tasks, 2) estimate task durations, 3)identify factors effecting duration, 4) project size, 5)human resources, 5) experience with similar projects, 6) constraints |
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Term
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Definition
| a recognizable reference point that you can use to monitor progress |
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Definition
| requirement modeling, data and process modeling, object modeling, consideration to development strategies |
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Definition
| usually results in better communication, faster development time, & more satisfied users |
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Definition
| cut development time and expenses by involving users in every phase of systems development |
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Term
Functional Decomposition Diagram
(FDD) |
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Definition
| a top-down representation of a function or process; analyst uses FDD's during requirements modeling to model business functions and show how they are organized into low-level process |
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Term
Unified Modeling Language
(UML) for software systems |
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Definition
| uses object-oriented design concept, but is independent from specific program languages; provides various graphical tools |
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Term
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Definition
| starts with an object, that object has attributes and methods, methods receive messages; then it has a class or classes, those classes are put into instances; example is JAVA |
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Definition
| characteristics that describe an object |
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Definition
| a group of similar objects |
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Definition
| a specific member of a class |
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Definition
| objects can inherit, or acquire, certain attributes from other objects |
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Definition
| define specific tasks that an object can perform |
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Definition
| a class can belong to a general category |
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Definition
| 1 rectangle, multiple ovals, stick figures and arrows |
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Definition
| arrows connecting entities with 1-1, 1-M, and M-N relationships. lines of arrows will have tallies or circles, and can be solid or dashed |
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Definition
| dashed line; represents time during which object above it is able to interact with the other objects |
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Definition
| a symbol that indicates a network or internet |
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Definition
| a firm that offers outsourcing solutions |
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Application Service Provider
(ASP) |
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Definition
| a firm that delivers a software application or access to an application, by charging a usage or subscription fee |
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Term
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Definition
| a set fee based on specific levels of service and user support |
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Term
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Definition
| a variable fee based on the number of users or workstations that have access to the application |
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Term
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Definition
| variable fee based on the volume of transactions or operations performed by the application |
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Term
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Definition
| satisfy unique business and security requirements, minimize changes in business procedures and policies, meet constraints of existing systems & technology, develop internal resources and capabilities |
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Term
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Definition
| depends on comparison of costs and benefits; if the future benefits outweigh the estimated costs of developing or acquiring a new system |
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Term
Return on Investment
(ROI) |
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Definition
a percentage rate that measures profitability by comparing the total net benefits (return) received from a project to the total cost (investment) of the project
ROI = (total benefits - total costs) / total costs |
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