diff --git a/bika/lims/browser/analysisrequest/manage_analyses.py b/bika/lims/browser/analysisrequest/manage_analyses.py
index 59d08f77f1..bba035570d 100644
--- a/bika/lims/browser/analysisrequest/manage_analyses.py
+++ b/bika/lims/browser/analysisrequest/manage_analyses.py
@@ -64,7 +64,8 @@ def __init__(self, context, request):
             'Price': {'title': _('Price'),
                       'sortable': False, },
             'Partition': {'title': _('Partition'),
-                          'sortable': False, },
+                          'sortable': False,
+                          'type': 'choices'},
             'min': {'title': _('Min')},
             'max': {'title': _('Max')},
             'error': {'title': _('Permitted Error %')},
@@ -171,13 +172,8 @@ def folderitems(self):
         self.expand_all_categories = False
 
         wf = getToolByName(self.context, 'portal_workflow')
-        mtool = getToolByName(self.context, 'portal_membership')
-
-        self.allow_edit = mtool.checkPermission('Modify portal content',
-                                                self.context)
 
         items = BikaListingView.folderitems(self)
-        analyses = self.context.getAnalyses(full_objects=True)
 
         parts = self.context.getSample().objectValues('SamplePartition')
         partitions = [{'ResultValue': o.Title(),
@@ -280,7 +276,7 @@ def folderitems(self):
 
             # Display analyses for this Analysis Service in results?
             ser = self.context.getAnalysisServiceSettings(obj.UID())
-            items[x]['allow_edit'] = ['Hidden', ]
+            items[x]['allow_edit'].append('Hidden')
             items[x]['Hidden'] = ser.get('hidden', obj.getHidden())
 
         self.categories.sort()
diff --git a/bika/lims/browser/analysisrequest/workflow.py b/bika/lims/browser/analysisrequest/workflow.py
index 356ee96cfa..4734b5f4bf 100644
--- a/bika/lims/browser/analysisrequest/workflow.py
+++ b/bika/lims/browser/analysisrequest/workflow.py
@@ -143,7 +143,7 @@ def workflow_action_save_analyses_button(self):
         specs = {}
         if form.get("min", None):
             for service_uid in Analyses:
-                service = bsc(UID=service_uid)[0].getObject()
+                service = objects[service_uid]
                 keyword = service.getKeyword()
                 specs[service_uid] = {
                     "min": form["min"][0][service_uid],
@@ -154,7 +154,7 @@ def workflow_action_save_analyses_button(self):
                 }
         else:
             for service_uid in Analyses:
-                service = bsc(UID=service_uid)[0].getObject()
+                service = objects[service_uid]
                 keyword = service.getKeyword()
                 specs[service_uid] = {"min": "", "max": "", "error": "",
                                       "keyword": keyword, "uid": service_uid}
diff --git a/bika/lims/browser/js/bika.lims.analysisrequest.js b/bika/lims/browser/js/bika.lims.analysisrequest.js
index 538d1fadfe..4f227fdaf6 100644
--- a/bika/lims/browser/js/bika.lims.analysisrequest.js
+++ b/bika/lims/browser/js/bika.lims.analysisrequest.js
@@ -487,7 +487,7 @@ function AnalysisRequestAnalysesView() {
         ////////////////////////////////////////
         // checkboxes in services list
         $("[name='uids:list']").live("click", function(){
-            calcdependencies([this]);
+            calcdependencies([this], true);
             var service_uid = $(this).val();
             if ($(this).prop("checked")){
                 check_service(service_uid);
@@ -497,12 +497,12 @@ function AnalysisRequestAnalysesView() {
         });
 
     }
-
+    /**
+    * This function validates specification inputs
+    * @param {element} The input field from specifications (min, max, err)
+    */
     function validate_spec_field_entry(element) {
         var uid = $(element).attr("uid");
-        // no spec selector here yet!
-        // $("[name^='ar\\."+sb_col+"\\.Specification']").val("");
-        // $("[name^='ar\\."+sb_col+"\\.Specification_uid']").val("");
         var min_element = $("[name='min\\."+uid+"\\:records']");
         var max_element = $("[name='max\\."+uid+"\\:records']");
         var error_element = $("[name='error\\."+uid+"\\:records']");
@@ -528,7 +528,11 @@ function AnalysisRequestAnalysesView() {
             }
         }
     }
-
+    /**
+    * This functions runs the logic needed after setting the checkbox of a
+    * service.
+    * @param {service_uid} the service uid checked.
+    */
     function check_service(service_uid){
         var new_element, element;
 
@@ -573,7 +577,11 @@ function AnalysisRequestAnalysesView() {
         }
 
     }
-
+    /**
+    * This functions runs the logic needed after unsetting the checkbox of a
+    * service.
+    * @param {service_uid} the service uid unchecked.
+    */
     function uncheck_service(service_uid){
         var new_element, element;
 
@@ -604,15 +612,18 @@ function AnalysisRequestAnalysesView() {
     }
 
     function add_Yes(dlg, element, dep_services){
+    var service_uid;
         for(var i = 0; i<dep_services.length; i++){
-            var service_uid = dep_services[i].Service_uid;
+            service_uid = dep_services[i];
             if(! $("#list_cb_"+service_uid).prop("checked") ){
                 check_service(service_uid);
                 $("#list_cb_"+service_uid).prop("checked",true);
             }
         }
-        $(dlg).dialog("close");
-        $("#messagebox").remove();
+        if(dlg !== false){
+            $(dlg).dialog("close");
+            $("#messagebox").remove();
+        }
     }
 
     function add_No(dlg, element){
@@ -620,10 +631,18 @@ function AnalysisRequestAnalysesView() {
             uncheck_service($(element).attr("value"));
             $(element).prop("checked",false);
         }
-        $(dlg).dialog("close");
-        $("#messagebox").remove();
+        if(dlg !== false){
+            $(dlg).dialog("close");
+            $("#messagebox").remove();
+        };
     }
-
+    /**
+    * Once a checkbox has been selected, this functions finds out which are
+    * the dependencies and dependants related to it.
+    * @param {elements} The selected element, a checkbox.
+    * @param {auto_yes} A boolean. If 'true', the dependants and dependencies
+    * will be automatically selected/unselected.
+    */
     function calcdependencies(elements, auto_yes) {
         /*jshint validthis:true */
         auto_yes = auto_yes || false;
@@ -653,7 +672,7 @@ function AnalysisRequestAnalysesView() {
                 }
                 if (dep_services.length > 0) {
                     if (auto_yes) {
-                        add_Yes(this, element, dep_services);
+                        add_Yes(false, element, dep_services);
                     } else {
                         var html = "<div id='messagebox' style='display:none' title='" + _("Service dependencies") + "'>";
                         html = html + _("<p>${service} requires the following services to be selected:</p>"+
@@ -685,7 +704,7 @@ function AnalysisRequestAnalysesView() {
                 var Dependants = lims.AnalysisService.Dependants(service_uid);
                 for (i=0; i<Dependants.length; i++){
                     dep = Dependants[i];
-                    cb = $("#list_cb_" + dep.Service_uid);
+                    cb = $("#list_cb_" + dep);
                     if (cb.prop("checked")){
                         dep_titles.push(dep.Service);
                         dep_services.push(dep);
@@ -695,9 +714,9 @@ function AnalysisRequestAnalysesView() {
                     if (auto_yes) {
                         for(i=0; i<dep_services.length; i+=1) {
                             dep = dep_services[i];
-                            service_uid = dep.Service_uid;
-                            cb = $("#list_cb_" + dep.Service_uid);
-                            uncheck_service(dep.Service_uid);
+                            service_uid = dep;
+                            cb = $("#list_cb_" + service_uid);
+                            uncheck_service(service_uid);
                             $(cb).prop("checked", false);
                         }
                     } else {
@@ -714,10 +733,10 @@ function AnalysisRequestAnalysesView() {
                                 yes: function(){
                                     for(i=0; i<dep_services.length; i+=1) {
                                         dep = dep_services[i];
-                                        service_uid = dep.Service_uid;
-                                        cb = $("#list_cb_" + dep.Service_uid);
+                                        service_uid = dep;
+                                        cb = $("#list_cb_" + dep);
                                         $(cb).prop("checked", false);
-                                        uncheck_service(dep.Service_uid);
+                                        uncheck_service(dep);
                                     }
                                     $(this).dialog("close");
                                     $("#messagebox").remove();
diff --git a/bika/lims/browser/js/bika.lims.bikalisting.js b/bika/lims/browser/js/bika.lims.bikalisting.js
index a716677f6e..4ee7fafeb9 100644
--- a/bika/lims/browser/js/bika.lims.bikalisting.js
+++ b/bika/lims/browser/js/bika.lims.bikalisting.js
@@ -308,8 +308,8 @@ function BikaListingTableView() {
 				event.preventDefault()
 			}
 			// check the item's checkbox
-			form_id = $(this).parents("form").attr("id")
-			uid = $(this).attr("uid")
+			var form_id = $(this).parents("form").attr("id")
+			var uid = $(this).attr("uid")
 			if (!($("#" + form_id + "_cb_" + uid).prop("checked"))) {
 				$("#" + form_id + "_cb_" + uid).prop("checked", true)
 			}
diff --git a/bika/lims/browser/js/bika.lims.common.js b/bika/lims/browser/js/bika.lims.common.js
index fc6e09f409..657e8bdad0 100644
--- a/bika/lims/browser/js/bika.lims.common.js
+++ b/bika/lims/browser/js/bika.lims.common.js
@@ -22,13 +22,14 @@ function CommonUtils() {
             Dependants: function(service_uid){
                 var request_data = {
                     catalog_name: "bika_setup_catalog",
-                    UID: service_uid
+                    UID: service_uid,
+                    include_methods: 'getServiceDependantsUIDs',
                 };
                 var deps = {};
                 $.ajaxSetup({async:false});
                 window.bika.lims.jsonapi_read(request_data, function(data){
                     if (data.objects != null && data.objects.length > 0) {
-                        deps = data.objects[0].ServiceDependants;
+                        deps = data.objects[0].getServiceDependantsUIDs;
                     } else {
                         deps = [];
                     }
@@ -39,13 +40,14 @@ function CommonUtils() {
             Dependencies: function(service_uid){
                 var request_data = {
                     catalog_name: "bika_setup_catalog",
-                    UID: service_uid
+                    UID: service_uid,
+                    include_methods: 'getServiceDependenciesUIDs',
                 };
                 var deps = {};
                 $.ajaxSetup({async:false});
                 window.bika.lims.jsonapi_read(request_data, function(data){
                     if (data.objects != null && data.objects.length > 0) {
-                        deps = data.objects[0].ServiceDependencies;
+                        deps = data.objects[0].getServiceDependenciesUIDs;
                     } else {
                         deps = [];
                     }
diff --git a/bika/lims/content/analysisservice.py b/bika/lims/content/analysisservice.py
index b174386b1d..1975dfb489 100644
--- a/bika/lims/content/analysisservice.py
+++ b/bika/lims/content/analysisservice.py
@@ -487,6 +487,49 @@ def _getAvailableInstrumentsDisplayList(self):
         items.sort(lambda x, y: cmp(x[1], y[1]))
         return DisplayList(list(items))
 
+    @security.public
+    def getServiceDependencies(self):
+        """
+        This methods returns a list with the analyses services dependencies.
+        :return: a list of analysis services objects.
+        """
+        calc = self.getCalculation()
+        if calc:
+            return calc.getCalculationDependencies(flat=True)
+        return []
+
+    @security.public
+    def getServiceDependenciesUIDs(self):
+        """
+        This methods returns a list with the service dependencies UIDs
+        :return: a list of uids
+        """
+        deps = self.getServiceDependencies()
+        deps_uids = [service.UID() for service in deps]
+        return deps_uids
+
+    @security.public
+    def getServiceDependants(self):
+        bsc = getToolByName(self, 'bika_setup_catalog')
+        active_calcs = bsc(portal_type='Calculation', inactive_state="active")
+        calculations = [c.getObject() for c in active_calcs]
+        dependants = []
+        for calc in calculations:
+            calc_dependants = calc.getDependentServices()
+            if self in calc_dependants:
+                calc_dependencies = calc.getCalculationDependants()
+                dependants = dependants + calc_dependencies
+        dependants = list(set(dependants))
+        if self in dependants:
+            dependants.remove(self)
+        return dependants
+
+    @security.public
+    def getServiceDependantsUIDs(self):
+        deps = self.getServiceDependants()
+        deps_uids = [service.UID() for service in deps]
+        return deps_uids
+
     def workflow_script_activate(self):
         workflow = getToolByName(self, 'portal_workflow')
         pu = getToolByName(self, 'plone_utils')
diff --git a/bika/lims/content/calculation.py b/bika/lims/content/calculation.py
index 1b2ea0b921..6ce0b607d6 100644
--- a/bika/lims/content/calculation.py
+++ b/bika/lims/content/calculation.py
@@ -175,11 +175,14 @@ def getCalculationDependencies(self, flat=False, deps=None):
     def getCalculationDependants(self):
         """Return a flat list of services who's calculations depend on this."""
         deps = []
-        for service in self.getBackReferences('AnalysisServiceCalculation'):
+        bsc = getToolByName(self, 'bika_setup_catalog')
+        services_b = bsc(
+            portal_type='AnalysisService', inactive_state="active")
+        for service_b in services_b:
+            service = service_b.getObject()
             calc = service.getCalculation()
-            if calc and calc.UID() != self.UID():
-                calc.getCalculationDependants(deps)
-            deps.append(service)
+            if calc and calc.UID() == self.UID():
+                deps.append(service)
         return deps
 
     def workflow_script_activate(self):
diff --git a/bika/lims/jsonapi/__init__.py b/bika/lims/jsonapi/__init__.py
index 45d7e90b76..9cc9195bd1 100644
--- a/bika/lims/jsonapi/__init__.py
+++ b/bika/lims/jsonapi/__init__.py
@@ -103,6 +103,24 @@ def load_field_values(instance, include_fields):
     return ret
 
 
+def get_include_methods(request):
+    """Retrieve include_methods values from the request
+    """
+    methods = request.get("include_methods", "")
+    include_methods = [
+        x.strip() for x in methods.split(",") if x.strip()]
+    return include_methods
+
+
+def load_method_values(instance, include_methods):
+    ret = {}
+    for method in include_methods:
+        if hasattr(instance, method):
+            val = getattr(instance, method)()
+            ret[method] = val
+    return ret
+
+
 def resolve_request_lookup(context, request, fieldname):
     if fieldname not in request:
         return []
diff --git a/bika/lims/jsonapi/read.py b/bika/lims/jsonapi/read.py
index d003912a50..75feb50dca 100644
--- a/bika/lims/jsonapi/read.py
+++ b/bika/lims/jsonapi/read.py
@@ -12,6 +12,8 @@
 from plone.protect.authenticator import AuthenticatorView
 from bika.lims.jsonapi import load_brain_metadata
 from bika.lims.jsonapi import load_field_values
+from bika.lims.jsonapi import get_include_methods
+from bika.lims.jsonapi import load_method_values
 from Products.CMFCore.utils import getToolByName
 from zope import interface
 from zope.component import getAdapters
@@ -71,6 +73,8 @@ def read(context, request):
 
     include_fields = get_include_fields(request)
 
+    include_methods = get_include_methods(request)
+
     # Get matching objects from catalog
     proxies = catalog(**contentFilter)
 
@@ -108,6 +112,8 @@ def read(context, request):
         # Place all schema fields ino the result.
         obj = proxy.getObject()
         obj_data.update(load_field_values(obj, include_fields))
+        # Add methods results
+        obj_data.update(load_method_values(obj, include_methods))
 
         obj_data['path'] = "/".join(obj.getPhysicalPath())