Methods, devices and computer software for facilitating searching and display of locations relevant to a digital map

A portable electronic device comprising:

• one or more processors;
• data repository containing:
• data records representative of locations relevant to or within a digital map;
• and
• data representative of an index associating words contained in the data records with the records in which those words appear;
• and
• computer readable medium comprising instructions which, when executed by the one or more processors, cause the electronic device, in relation to a received search query including a search string derived from user input on a user interface of the electronic device, to:
• process the search string to provide one or more search words;
• query the index to identify data records containing the or each search word;
• generate a rank for each of the one or more identified data records indicative of the relevance of each identified data record to the search query;
• and
• cause the display of the results of the search query on a display of the electronic device.