Table 2. MF model collection and classification.

Model		Year published	Cover Phase
			Preservation	Acquisition	Examination & Analysis	Reporting
Set1 for Metamodel development
1	Developing Process for Mobile Device Forensics [43]	2009	X	X	X	X
2	Symbian smartphones forensic process model [44]	2009	X	X	X	X
3	Windows Mobile Forensic Process Model [45]	2007	X	X	X	X
4	Smartphone Forensic Investigation Process Model [46]	2012	X	X	X	X
5	Smart-Phone DEFSOP [47]	2011	X	X	X	X
6	Enhanced Mobile Forensic Process Model [48]	2013	X	X	X	X
7	Framework for iPhone Forensic [49]	2011	X	X	X	X
8	Mobile Forensics using the Harmonised Digital Forensic Investigation Process [50]	2014	X	X	X	X
9	A quantitative approach to Triaging in Mobile Forensics [51]	2011	X	X	X	X
10	A Theoretical Process Model for Smartphones [52]	2013	X	X	X	X
11	Mobile Smart Device Investigation Process [53]	2015	X	X	X	X
12	Conceptual Evidence Collection and Analysis Methodology for Android Devices [54]	2015	X	X	X	X
13	Mobile Forensic Investigation Life Cycle Process [55]	2016	X	X	X	X
14	An Android Social App Forensics Adversary Model [56]	2016	X	X	X	X
15	Android cache taxonomy and forensic process [57]	2015	X	X	X	X
16	Thumbnail forensic recovery process for Android devices [58]	2015	X	X	X	X
17	Integrated Digital Forensic Investigation Model for smartphone [59]	2016	X	X	X	X
18	Framework of Digital Forensics for the Samsung Star Series Phone [60]	2011	X	X	X	X
19	Guidelines on Mobile Device Forensics [42]	2013	X	X	X	X
20	Mobile Forensics Model [61]	2016	X	X	X	X
21	An Approach for Mobile Forensics Analysis [62]	2015	X	X	X	X
Set V1 for first validation
1	Digital evidence extraction and documentation from mobile devices [63]	2013		X
2	ANDROPHSY–Forensic Framework for Android [64]	2015	X		X	X
3	Mobile Forensic Adversary Model [65]	2015			X
4	A Mobile Forensics Model Based on Social Relations [66]	2014			X
5	Evidence Data Collection through iPhone Forensic [67]	2012	X	X
6	A General Collection Methodology for Android Devices [68]	2013		X	X
7	Forensic analysis and security assessment of Android m-banking apps [69]	2016		X	X
8	Logical acquisition and analysis of data from android mobile devices [70]	2015		X	X
9	Smartphone Forensics: A Proactive Investigation Scheme [71]	2011	X	X
10	CDCD-5 an Improved Mobile Forensics Model [72]	2012	X		X
Set V2 for second validation
1	Testing the Harmonised Digital Forensic Investigation Process Model-Using an Android Mobile Phone [73]	2013	X	X	X	X
2	Advances of Mobile Forensic Procedures in Firefox OS [74]	2014	X	X	X
3	Acquisition and Analysis of Digital Evidence in Android Smartphones [75]	2011	X	X	X
4	Generic Process Model for Smartphones Live Memory Forensics [76]	2014	X	X	X	X
5	Digital Forensics Process of Smartphone Devices [77]	2011	X	X	X	X
6	Guidelines on Cell Phone Forensics [5]	2007	X	X	X	X
7	Smart Handheld Device Digital Evidence Forensic Procedures [78]	2013	X	X	X
8	Systematic Digital Forensic Investigation Model [79]	2011	X	X	X	X
9	The Forensic Process Analysis of Mobile Device [80]	2015		X	X	X
10	A Unified Forensic Investigation Framework of Smartphones [81]	2013	X		X	X