(b) physical disabilities. The prototype developed includes contact details for Swishy Fishy as well as a form for feedback from customers on what they would like to see included on the final website. For example, a 24-speed CAV CD drive can retrieve some 1.8 megabytes per second at the centre and 3.6 megabytes per second at the outside. List in point form, significant historical events that have influenced the development of today’s web browsers. The ATI All-in-Wonder includes plugs into a PCIe PCIe interface has recently (2007) replaced slot and includes DVI and HDMI interfaces. Output may be sent to a number of destinations including: • video cards and monitors • hardcopy devices such as laser printers, inkjet printers, dot matrix printers and plotters. (D) Ability to reverse or undo actions. Observation often highlights details of the user interface that can significantly improve the useability of the final product. Well it actually actives a compression function within the application. A team of researchers working at Xerox during the early 1970s refined many of the design concepts that form the basis of today’s GUIs. In this section we consider magnetic storage and hard disk drives, optical storage and CD/DVD reading and writing, and finally flash drives which use solid state storage. That said, there are a few individuals who simply must be mentioned. Fig 1.28 The PowerBraille (top) is both an input and display device. The data on each fish is to include common name, scientific name, water details, compatibility with other species, feeding requirements, a colour photo, availability and some general information. so it is restored to its original state. SRAM does not use capacitors to store data rather it uses flip-flops. The first version was written for UNIX machines in 1993. On the other hand, informal communication should be encouraged Software Design and Development – The Preliminary Course 42 Chapter 1 between team members to facilitate the flow of knowledge and expertise. details. Their purpose being combine to perform all the actions of all to carry out this function. At that time, he also coined the terms ‘hypertext’ and ‘hypermedia’ for non-sequential writings and branching presentations of all types. To meet this need requires a deep understanding of what they mean by a sales summary. Software Design and Development – The Preliminary Course 158 Chapter 4 GROUP TASK Discussion For each scenario above, discuss how top-down design, abstraction and reusable modules simplify the process of modifying the software. Information technology -- Study and teaching. (D) an operational model. The input may come from a variety of sources including: • users entering data via a keyboard, mouse, barcode reader or other input device • communication links such as a local area network or the Internet • sensors such as microphones, cameras, temperature sensors, pressure sensors, optical sensors, motion sensors. (A) Agile approach (B) Prototyping approach (C) End user approach. (D) more than a few seconds. (D) The agile approach. This may involve the creation of screen designs to document user requirements. Different types of atoms, when excited, give off radiation in the form of different types of light; under normal conditions the light is emitted in all directions, for example neon advertising signs. Similarly graphics, particularly many appropriate in western cultures, are deemed inappropriate in many eastern cultures. A user is allowed to copy software under which of the following conditions? (C) both (A) and (B). GROUP TASK Discussion Although development using a RAD approach is unstructured and informal each of the steps used in the structured approach is still completed. SOCIAL AND ETHICAL ISSUES ________________________________3 Evolution of software applications ............................................................................... 4 Command line and graphical user interface (GUI) Internet applications Spreadsheets and presentation software Ergonomic issues regarding software design HSC style question Set 1A 4 6 12 13 14 15 Intellectual property ...................................................................................................... 17 Software licence agreements Events that have led to the need for software licence agreements Sources of code and conditions that apply Set 1B 17 22 23 24 Social context of software design ................................................................................ 25 Ergonomics HSC style question Set 1C Inclusivity Privacy Required skills in software design and development HSC style question Chapter 1 review 2. Explain and discuss your answer using the above scenarios as examples. A programmer could use which to ensure data is validated? Although sites such as MySpace, Facebook, LinkedIn and others have become progressively more popular since 2003, there are numerous sites that have been in operation since the late 1990s. Page and Brins initial search engine was called BackRub. Research the privacy policies and security mechanisms used to control access to this personnel information. Graphics that are just graphics, are intermingled with graphics that are in fact controls with no visual differentiation. Six degrees operated from 1997 to 2001 and was based on the idea that nobody is separated by more than six degrees of separation. Fig 2.15 So what operations occur to collect a colour Components of a flatbed scanner. The paper now approaches the drum, travelling at precisely the same speed as the drum. Furthermore, software includes and takes account of products that do not take into account the stated concerns. Why then do software developers go to the trouble of developing GUI applications? (C) Hardware, software, data, personnel and procedures. HSC style question: The following messages were generated by a single software application: Comment on the appropriateness of these messages in terms of: (a) the language and icons used (b) the options available to the user Suggested solution (a) The language in the first message is good however the second message is too personal. Interiors: Design, Process, and Practice is a text that looks at a profession that is never static or predictable because it focuses on people. 12. GROUP TASK Research Use the Internet to find a list of opcodes for a number of modern CPUs. Apple and Microsoft reached agreement Fig 1.3 that Microsoft would develop Screen shot from MacPaint. GROUP TASK Research Machine language emerged in the late 1940s, assembler the mid 1950s, and soon after the first high-level languages appeared. Personal information is any information that allows others to identify you. The major one being that it does not display the filename just the first frame of each video. Ltd. iii CONTENTS ACKNOWLEDGEMENTS vii TO THE TEACHER vii TO THE STUDENT vii CONCEPTS AND ISSUES IN THE DESIGN AND DEVELOPMENT OF SOFTWARE 1. Ergonomics for computer users includes the design and placement of equipment together with procedures to prevent and minimise injuries. To distribute a program in this way makes copying and alteration of the source code simple. Let us examine some broad categories of disability and discuss some accessibility techniques that should be considered by software designers. Let us briefly examine a few common techniques: • Brainstorming - Focus on the problem. The execution of an event driven program involves the computer continually scanning each control to check if an event has occurred. Erfahren Sie, wie wir und unser Anzeigenpartner Google Daten sammeln und verwenden. (B) compilation and source translation. 13. Each community develops over time a set of rules and standards with which members are expected to abide. Disability Software design should include functionality that allows software to be used and accessed by a wide range of users. Software Design and Development –The Preliminary Course Hardware and Software 59 The LED lamp, mirror, lens and CCD are all mounted on a single carriage; these Interface components are collectively known as the connections scan head (refer Fig 2.15). Zeros are represented when the direction of the current flow is constant and hence the direction of the magnetic field remains constant. As new viruses are detected the signature files are updated by the anti-virus developer and distributed to all users. The results are stored in the student file. 5. To the casual human observer it is impossible to make any sense of machine language in its native form. 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