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【正文】 TYPES OF SOFTWARE Essentials of Management Information Systems Managing Hardware and Software Assets Software for Enterprise Integration: Enterprise Software and Middleware 53 TYPES OF SOFTWARE Essentials of Management Information Systems Managing Hardware and Software Assets Middleware Figure 18 54 Enterprise application integration software ? Ties together multiple applications to support enterprise integration TYPES OF SOFTWARE Essentials of Management Information Systems Managing Hardware and Software Assets Software for Enterprise Integration: Enterprise Software and Middleware 55 Objectoriented programming ? Approach to software development that bines data and procedures into a single object Visual programming ? Construction of software programs by selecting and arranging programming objects CONTEMPORARY TOOLS FOR SOFTWARE DEVELOPMENT Essentials of Management Information Systems Managing Hardware and Software Assets ObjectOriented Programming 56 CONTEMPORARY TOOLS FOR SOFTWARE DEVELOPMENT Essentials of Management Information Systems Managing Hardware and Software Assets Class, subclasses, and overriding Figure 19 57 ? Programming language ? Delivers the software functionality needed for a particular task ? Runs on any puter and operating system CONTEMPORARY TOOLS FOR SOFTWARE DEVELOPMENT Essentials of Management Information Systems Managing Hardware and Software Assets Java 58 ? Hypertext Markup Language (HTML): Page description language, creates Web pages and other hypermedia documents ? XML (eXtensible Markup Language): Generalpurpose language, supports links to multiple documents, used for both Web and nonWeb applications CONTEMPORARY TOOLS FOR SOFTWARE DEVELOPMENT Essentials of Management Information Systems Managing Hardware and Software Assets Hypertext Markup Language (HTML) and XML 59 ? Capacity planning: Process of predicting the puting power ? Scalability: Ability of a puter, product, or system to expand and to serve without breaking down HARDWARE TECHNOLOGY REQUIREMENTS Essentials of Management Information Systems Managing Hardware and Software Assets Hardware Technology Requirements for Electronic Commerce and Digital Firm 60 ? Designates the total cost of owning technology resources ? Includes initial purchase costs, cost of hardware and software upgrades, maintenance, technical support, and training HARDWARE TECHNOLOGY REQUIREMENTS Essentials of Management Information Systems Managing Hardware and Software Assets Total Cost of Ownership (TCO) of Technology Assets 61 OnLine storage service providers ? Thirdparty provider ? Rent out storage space to subscribers over the Web ? Allow customers to store and access data HARDWARE TECHNOLOGY REQUIREMENTS Essentials of Management Information Systems Managing Hardware and Software Assets Rent or Build Decisions: Using Technology Service Providers 62 Application Service Providers (ASPs) ? Provide software that can be rented by other panies Other Types of Service Providers ? Provide additional resources for helping anizations manage their technology assets HARDWARE TECHNOLOGY REQUIREMENTS Essentials of Management Information Systems Managing Hardware and Software Assets Rent or Build Decisions: Using Technology Service Provider
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