Marketing communications and promotion. Tourists are the target group, marketing activities have as a goal to attract tourists, information is the key of attraction - information as communication and promotion.

https://www.academia.edu/5084825/INFORMATION_SYSTEMS_AND_TOURISM_MARKETING_NEW_CHALLENGES_FOR_TOURISM_BUSINESS_SECTOR_IN_EGYPT

https://www.researchgate.net/publication/229428573_Tourism_Marketing_Basics

https://www.semanticscholar.org/paper/INFORMATION-SYSTEMS-AND-TOURISM-MARKETING%3A-NEW-FOR-Eraqi-Abd-Alla/a8a32ed26759fa10d27ea4edef5fc76804f9d4d1

Refer to the following links

https://www.ingentaconnect.com/content/cog/itt/2003/00000006/00000004/art00002

https://www.sciencedirect.com/science/article/abs/pii/S0261517702000079

Article Developing a Knowledge-Based Tourism Marketing Information System.

A marketing information system is normally a software system of capturing data (and thereby information) which a company can gather and populate in order to help them segment markets (eg CRM software).

From the analysis and segmentation of this information, strategies can be put in place at specific identified target markets (and thus various activities) to position their products and offerings directed at those markets/segments with a compelling message.

Empirical data suggests a link between marketing information systems and tourism marketing. It has been noted that tourist organisations attempt to maximise their potential by utilising marketing information systems. Tourism organisations utilise informal marketing information systems that primarily focus on internal and immediate operating environment data. Important broader market intelligence is underused, owing mostly to the limited resources of these smaller enterprises. Despite the benefits of delivering much of the essential data more rapidly and at a lower cost than traditional methods, extensive usage of the internet can be regarded a key source of market intelligence.

Electronic customer relationship management (E-CRM)