Approach Heuristic	Sub-Type of SAR Approach	Approach Name + Reference	Direction of Recovery Select All	Technique or Tool Select All	Availability Select All	Empirical Evaluation Select All	Applied-to Systems	Required Input
		An ML based Automatic SAR Approach [122]	Bottom-up	Technique	No	Not Specified	Not Specified	Structural Information, Dynamic Information, Textual Information, Contextual Information
		Supervised Learning SAR approach [123]	Bottom-up	Technique	No	Field Study	Jhotdraw, Xfig	Architectural Information
	Structural Dependency Based	An automated feature selection based technique [124]	Bottom-up	Technique	No	Field Study	SAVT, FES, Mozilla	Not Specified
		Bayesian learning based approach [125]	Bottom-up	Technique	No	Field Study	Mosaic	Architectural Information
		SArF [126]	Bottom-up	Technique	No	Case Study	Weka, Fujitsu's DMTool	Source Code
		CAESAR [144]	Bottom-up	Tool	No	Case Study	AUTOSAR, HTTP Driver	Source Code
		SARIF [140]	Bottom-up	Technique	Yes	Similarity Metrics	Bash, ArchStudio, Hadoop, ITK, Chromium, OODT, HDC, HDF, Libxml2	Source Code, Structural Information, Lexical Information
		Unnamed Approach [145]	Not Specified	Not Specified	No	Similarity Metrics	ArchStudio, Hadoops	Structural, Semantic, Directory Information
		Unnamed Approach [146]	Hybrid	Technique and Tool	No	Respondents	ArgoUML	Source Code, Lexical Information
		ISAR [147]	Bottom-up	Technique	No	Similarity Metrics	"Okhttp, Mabatis, Mockito, Junit, Retrofit, Jadx, Terrier, Clone, Freecol, and Fastjson"	Source Code
		NEGAR [148]	Bottom-up	Technique	No	Similarity Metrics	Bash, ArchStudio, Hadoop, ITK, Chromium	Source Code, Structural Information
		MAFM [149]	Bottom-up	Technique	No	Not Specified	SpringCloud, SpringBlade, SOP, microservice-platform, mogu_blog_v2, bigfans-cloud, mall-swarm, pig, Xueyuan, auto-platfrom@STQ, multi-task@STQ, ci-platform@STQ	Structural Information, Source Code
Clustering (ML based)	Mapping Based Recovery	RecovAr [127]	Top-Down	Technique	No	Precision and Recall	Hadoop and Struts	Not Specified
		ML based SAR Approach [128]	Bottom-up	Technique	No	Not Specified	Xfig, Apache, Clips, Bash, ELM, GhostView	Architectural Information
		MDSD based Tool [129]	Bottom-up	Tool	No	Case Study	Matrix Framework	Not Specified
		Arch [130]	Bottom-up	Tool	No	Case Study	Not Specified	Lexical Information, Historical Information, Structural Information
	Others	TTIMs based Approach [131]	Bottom-up	Technique	No	Case Study	Apache Hadoop	Structural Information
		Bunch [132], [133], [134], [135], [136], [137], [138]	Bottom-up	Tool	Yes	Case Study	dot	Source Code, Human Expertise

Approach Heuristic	Sub-Type of SAR Approach	Approach Name + Reference	Direction of Recovery Select All	Technique or Tool Select All	Availability Select All	Empirical Evaluation Select All	Applied-to Systems	Required Input
		Alborz [74], [75]	Bottom-up	Tool	No	Precision and Recall	Not Specified	Source Code, Dynamic Information, Human Expertise
		A concept analysis based approach [80]	Hybrid	Tool	No	Experimental Simulation	A new feature-based evaluation framework	Source Code, Textual Information, Dynamic Information, Physical Information, Styles, Viewpoints
		Feature based Architecture Recovery [86]	Bottom-up	Technique	No	Case Study	Aero, Bash, CVS, Mosaic	Source Code, Dynamic Information, Human Expertise
	Concept Analysis	Unnamed [91]	Bottom-up	Technique	No	Case Study	Chull, BDD, Go, Lucent Code	Source Code
		URCA [81]	Bottom-up	Tool	Yes	Not Specified	Not Specified	Source Code, Dynamic Information, Human Expertise
		Cacophony [87]	Bottom-up	Technique	No	Case Study	Control panel, Debugger interface, Cross reference facility, Message facility, Communication package	Source Code, Human Expertise
Directed Analysis		Symphony/Nimeta [88], [89], [90]	Bottom-up	Tool	No	Field Study	PKUAS, EJB	Source Code, Dynamic Information, Styles
		Unnamed [83], [84]	Bottom-up	Tool	No	Experimental Simulation	Call Graph	Source Code, Human Expertise
		X-Ray [82]	Bottom-up	Technique	No	Case Study	Image Processing System	Source Code, Dynamic Information, Human Expertise, Styles
	Dominance Analysis	Bauhaus [77], [78], [79]	Hybrid	Tool	No	Not Specified	Dassault Systèmes	Human Expertise
		Unnamed (Dominance analysis) [85]	Hybrid	Technique and Tool	No	Case Study	SDCC, CCL, NPF, Venice	Dynamic Information, Human Expertise, Viewpoints
	Layers and Matrix	ArchVis [76]	Bottom-up	Technique	No	Precision and Recall	Not Specified	Not Specified
		LBHFC [92]	Bottom-up	Technique	No	Field Study	Bash, CVS, CA, WCA, LIMBO	Structural Information
		UPGMA [93]	Bottom-up	Technique	No	Case Study	Telecommunications system	Object-attribute data matrix
		Probabilistic model based on Expectation Maximization [94]	Bottom-up	Technique and Tool	No	Case Study	EasyMock, JabRef, Javagroups, JEdit, JUnit, Jvlt	Lexical information
		LBME [95]	Bottom-up	Technique and Tool	No	Field Study	ArgoUML, GEF, JFreeChart, Lucene, Solr, Tomcat, Weka,BMC, Equality, Karniyarik, SMC	Structural Information
		WCA [96]	Bottom-up	Technique	No	Similarity Metrics	Xfig, Bash	Structural Information
		LIMBO [97], [98], [99]	Bottom-up	Technique	No	Similarity Metrics	4 algorithms and 5 datasets	Not Specified
		ARC [100]	Bottom-up	Technique	No	Similarity Metrics	MALLET, Weka, Soot	IR based information
	Weight based Approaches	Zone Based Recovery (ZBR) [101], [102]	Bottom-up	Technique	No	Case Study	EasyMock, JabRef, Javagroups, JEdit, JUnit, Jvlt, JHotDraw, JFreeChart, PMD, FindBugs, ArgoUML, EclipseJdtCore, JdkSwing	Textual Information
		A Hypergraph Clustering based approach [103]	Bottom-up	Technique	No	Precision and Recall	CRM	Structural Information
		CCHD based Approach [104]	Bottom-up	Technique and Tool	No	Experimental Simulation	Sando, Apache httpd, JEdit, Apache OODT, Hadoop, ArchStudio, and ITK	Source Code
		HCC [105]	Bottom-up	Technique	No	Experimental Simulation	DDA, FES, Junit, SAVT, iText, Weka	Structural Information
Clustering (Non ML based/Not Specified)		A clustering method for SAR based on source code [106]	Bottom-up	Technique	No	Experimental Simulation	CVS, Mosaic, Bash, Xfig	Source Code
		WDCG based SAR [107]	Top-Down	Technique	No	Experimental Simulation	Software clustering quality, authoritativeness, extremity of cluster distribution and stability	Structural Information
		Unnamed [108]	Bottom-up	Technique	No	Precision and Recall	Xfig, Bash	Not Specified
		HYGAR [141]	Hybrid	Technique	No	Case Study	Lucene, OpenJPA, Bash, Hadoop, ArchStudio	Structural Information
		HYGAR-II [142]	Hybrid	Technique	Yes	Case Study	Lucene, OpenJPA, Bash, Hadoop, ArchStudio, Nutch, Struts2	Structural Information
		Unnamed [109], [110]	Bottom-up	Technique	No	Precision and Recall	Mobile Media and Health Watcher	Lexical information
		Softwarenaut [111], [112]	Hybrid	Tool	Yes	Not Specified	Hapax semantic analysis framework	Source Code, Textual Information, Physical Information, Styles
	Knowledge Based Recovery	ArchMine [113]	Top-Down	Technique	No	Case Study	CSBase	Not Specified
		A proximity measure based SAR approach [114]	Not Specified	Technique	No	Case Study	Not Specified	Structural Information
		Software Reflexion Model [115]	Bottom-up	Technique and Tool	No	Case Study	NetBSD, Restructuring Tool, Excel	Source Code
		CASE based Approach [116]	Bottom-up	Tool	No	Not Specified	Not Specified	Architectural Information
		Architecture recovery based on a software structure [117]	Bottom-up	Technique and Tool	No	Field Study	Ericsson	Not Specified
	Mapping Based Recovery	ACDC [118]	Bottom-up	Technique	No	Field Study	TOBEY, Linux	Structural Information
		ARCADE [119]	Bottom-up	Technique and Tool	Yes	Case Study	Not Specified	Structural Information, Lexical Information
		SysMar [120]	Bottom-up	Technique	No	Case Study	Not Specified	Source Code
	Program Slicing	MDGs based technique [121]	Bottom-up	Technique	No	Case Study	Compiler, boxer, minitunis, ispell, rcs, bison	Not Specified
	Dependency Based Recovery	MAFM [143]	Bottom-up	Technique	No	Not Specified	SpringCloud, SpringBlade, SOP, microservice-platform, mogu_blog_v2, bigfans-cloud, mall-swarm, pig, Xueyuan, auto-platfrom@STQ, multi-task@STQ, ci-platform@STQ	Structural Information, Source Code