CCTNS nagaland_SI_RFP_Volume 1.pdf - National Crime Records ...

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Crime & Criminals Tracking Network and Systems ProjectNagaland PoliceS. No. Functionalityguidance on achieving self-descriptiveness is given in ISO 9241-110.6.7.8.9.10.11.12.13.14.15.16.Showing users where they are: Each presentation segment (page or window) shouldprovide the user with a clear and sufficient indication of where he or she is in thenavigation structure and of the current segment position with respect to the overallstructure.Offering alternative access paths: Alternative access paths for navigating to a specific unitof content should be offered to support different navigation strategies.Minimizing navigation effort: The number of navigation steps needed to reach a certainpiece of content should be minimized as long as different mental models, navigationstrategies and tasks of the user are taken into account.Splash screens should be avoided unless they provide useful content or feedback aboutthe application state to the user. If a splash screen is used, a navigation option to skip itshould be offered.Avoiding opening unnecessary windows: Additional windows such as new browserwindows or pop-up windows should only be opened if this supports the user’s task.Opening new windows can distract, confuse or impede users for a variety of reasons.They can superimpose the primary window, hiding relevant information.They could make it cognitively more difficult to understand the navigation structure withnegative effects on both usability and accessibility. They also require additional useractions for closing unwanted windows.Vertical scrolling should be minimized. This may be done by placing important informationat the top and providing links to information that is further down the page. Horizontalscrolling should be avoided wherever possible.Designing for input device independence: User interfaces should be designed to allowactivation of controls by a variety of input devices. The ability to choose between differentinput devices for activating controls such as links, fields and buttons is important both forusers who prefer a certain input mode, mobile users and users with disabilities. In general,device independence can be achieved if the functionality is operable via a keyboard.Making user interfaces robust: User interfaces should be designed to be as robust aspossible in the face of changing technology. This encompasses being able to presentcontent containing newer technologies by older user agents as well as designing contentto be usable with future technologies.Acceptable opening / download times: Application pages should be designed andimplemented so that there are acceptable opening times and download times for theexpected range of technical contexts of use (e.g. bandwidth between the application andthe user). This is particularly important for frequently accessed pages or pages that areimportant for user navigation and exploration, such as the home page.Minimizing user errors: Potential user errors as well as the effort needed to recover fromerrors should be minimized.Providing clear error messages: The content of error messages shown on the pages orspecial error pages should clearly state the reason why the error occurred and, if possible,actions the user can take to resolve the error. Users expect error messages to be in thesame language as the user interface.Using appropriate formats, units of measurement or currency: When designing userinterfaces for use by diverse groups, input and output of information elements such ascurrency, units of measurement, temperatures, date and time, phone numbers, address orpostal codes should be designed so that they are usable.Volume I Request for Proposal for Selection of System Integrator Page 150 of 193
Crime & Criminals Tracking Network and Systems ProjectNagaland PoliceS. No. Functionality17.18.19.20.21.22.23.24.25.26.27.28.29.Making text resizable by the user: Text should be able to be resized by the user, usingfunctions provided by the user agent or other appropriate means i.e. see ISO 9241-171.Text quality: The quality of textual content with respect to spelling and grammar should besufficient so as not to impede readability.Writing style: The reading and understanding of the textual content on the screen shouldbe supported by suitable means, including the use of short sentences, the division of thetext into shorter chunks or the presentation of content items in the form of bullet points.Supporting text skimming: Fast skimming of text should be supported by the provision ofclear links, bulleted lists, highlighted keywords, logical headings, and short phrases andsentences.Readability of text: Text presented on the pages should be readable taking into accountthe expected display characteristics and spatial arrangement. ISO 9241-303 shall beconsulted for screen text legibility requirements.Distinguishable within-page links: Within-page links should be clearly distinguishable fromother links that lead to a different page. EX. Within-page links are shown with dashedrather than solid underlinesAvoiding link overload: Text pages containing large proportions of links should beformatted so that the presence of links does not impede the readability of the text.Using familiar terminology for navigation links: Navigation links — particularly linksrepresenting the main navigation structure — should be labelled with terms that arefamiliar to the user, based on his/her general knowledge, prior experience in theapplication domain or experience of using other systems.Using descriptive link labels: The target or purpose of a link should be directly indicated byits label, avoiding generic labels such as “go” or “click here” except where the purpose ofthe link is clear from its context on the page or the labels have commonly understoodsemantics in the particular application domain. UsingAppropriate terminology specific to the user’s tasks and information needs is important formaking the content easy to understand.Marking links opening new windows: Links that open new browser windows or pop-upwindows should be clearly marked.Distinguishing navigation links from controls: Navigation links should be clearlydistinguishable from controls activating some action. Typical action types in userinterfaces include manipulating application data, performing searches, communicationactions, such as opening a new e-mail window or starting a chat function, andHpresentation-related actions, such as sorting a list of search results.Providing printable document versions: If a document is either too long, dispersedover several pages or in a specific layout that is not suitable for online reading, a printerfriendlyversion of the document should be provided that prints the content in a formacceptable to the user (e.g. in the expected layout, paper format, or orientation).Use of “white space”: “White space” on a page i.e. space filled only with the backgroundcolor should be used in such a way that it does not impair the visual skimming of thepage. While white space is an important means of visually organizing the different contentelements on a page, if the distance between the blocks of information displayed becomestoo large, rapid skimming of the page can be impeded.Volume I Request for Proposal for Selection of System Integrator Page 151 of 193
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