Platform limitations

The Contact table is automatically created in each new application. It can be renamed and/or edited (adding more fields to it), but not deleted.

This is the maximum number of records simultaneously allowed at any one time in an application, but this number does not take performance considerations into account. In releases of the IS Tools platform earlier than 1.5.1.1, the IDs of deleted records are not re-used, and therefore in these releases the stated number is the maximum number of records that can be created in an application, regardless of how many of them are simultaneously in existence at any one time.

The indicated value is the maximum number of fields allowed by the platform in each application, but this number does not take performance considerations into account. This value includes entities automatically created by the system while initializing an application. Since field IDs are not re-used by the system after the fields identified by these IDs are deleted, the indicated value is, in practice, the maximum number of fields that can be created throughout the lifetime of an application, not the maximum number of fields that can simultaneously exist at a given time.

Number fields can contain up to 12 characters (including digits, sign and/or decimal point).

The stated limitations apply to text in all languages and supported character sets. The current release of the IS Tools platform supports Unicode, and therefore can display all script types which are supported by Unicode and by the client computer and web browser used to access the IS Tools platform. However, it must also be remembered that some user platforms may correctly display certain scripts, but by default lack the means to type in these scripts. For instance, Chinese/Japanese/Korean scripts are correctly displayed in Western-languages releases of Microsoft Windows Vista and Microsoft Windows 7, but typing text in these scripts on these user platforms requires the additional installation of an appropriate IME. On the other hand, releases of Microsoft Windows XP in Western languages cannot by default display text in these scripts, and require the installation of additional fonts and software also for this purpose.

The stated limitations apply to the number of characters expressing a date value that can be entered in a form. At a minimum, a user must supply a date value that contains 2 characters each for the year, month and day, respectively. If separators, e.g., spaces or dashes ( - ), are used between the year, month and day values, then the minimum number of characters that can be accepted as a date value increases accordingly (e.g., 8 characters to match the date mask YY-MM-DD).

There are no intrinsic limitations, except for the maximum number of records and fields, respectively, in an application.

The practical number of files is limited by numerous factors, including, e.g., the number of records, the number of files per record, the file sizes and (for the obsolete Database File field type) the available table space or (for the File field type) the available file storage space.

E-mail addresses entered in the To: field are tested for validity.

The English and Swedish languages are normally installed in the IS Tools platform for general system items (form buttons, pop-up messages, etc.). These languages are automatically available in a specific application, if they are selected in the application’s initializing process.

Set in a server configuration file. Not editable through the GUI.

When the maximum size of a PDF report with images is exceeded, the rest of the images will not be loaded and their placeholders will be displayed as blank.