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CH 11 Mobile App Guidelines









                     11.4.22  Meaningful Notifications and Error Messages

                            Notifications are meant to inform and guide users. They can be error messages,
                            alerts, instructions, and changes of state, responding to an interaction or a range
                            of other cues. Use operating system alerts or inline messages.It should be  Ensured
                            that the notifications are audible and can be read by screen readers. Preference
                            should  be  given  to  operating  system  alerts  as  they  are  easier  to  understand.
                            Custom made notifications should be clear and precise.



                     11.5
                     General Guidelines


                     11.5.1  App size and performance
                               a.  Users  are  reluctant  to  install  and  use  apps  which  are  large  in  size  as
                                   mobiles  have limited storage. The app should be small to encourage
                                   installs and retentions.

                               b.  Applications may be used in areas where network connectivity is erratic
                                   or  slow  therefore  the  app  should  be  able  to  perform  bare  minimum
                                   functionality in absence of network connectivity. The users should be
                                   appropriately informed.The app should use network in an efficient and
                                   optimized manner. Platform specific guidelines should be followed for
                                   network management.

                               c.  Users may not be able charge the mobile frequently hence apps with
                                   heavy battery usage are uninstalled immediately. Battery draining features
                                   may be avoided.

                     11.5.2  Testing
                            Before uploading the app on the play store it should be ensured that the app
                            looks good on variety of screen sizes and  the app runs on all popular versions
                            of the target platform.

                     11.5.3  App Icons and other images
                            In  order  to  make  the  app’s  Play  store  listing  compelling,  unique  app  icon,
                            attention-grabbing images, video of  app in action and crisp  short description
                            may be used . Check the following links.
                            Android:

                            https://developer.android.com/distribute/best-practices/launch/store-listing.
                            html






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